Decades ago, dye chemists strove to replace toxic aromatic amines in coloring agents, chasing stability and vibrance without sacrificing safety. Organic dyes played a central role in the textile revolution, yet many early compounds, based on simple azo structures, shed their colors or faded under harsh sunlight or repeated washes. Disodium sulfonylbis[4,1-phenylenediazene-2,1-diyl(1-ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-5,3-diyl)]dimethanesulfonate comes out of a long series of chemical innovations aiming for colorfastness, improved safety, and varied application. Early syntheses required hazardous materials and dirty processes; changes in environmental laws pressured producers to clean up their acts. New regulatory frameworks, especially those growing out of the 1970s and 1980s, drove researchers to refine purification processes, minimize waste, and give end-users better labeling and instructions. Each regulatory milestone pushed the chemical industry toward more sophisticated and structured research and development, with this compound as a prime example of that legacy.
Disodium sulfonylbis*** is best known as a complex organic salt. It features two azo bridges and strongly electron-pulling sulfonate groups. That gives the molecule both water solubility and bright, lasting colors—pushing it ahead of many older dyes still hanging around on factory shelves. Factories use this compound for more than textile dyeing. It appears in fields as varied as electronics (for functional coatings), medical diagnostics (for specific staining protocols), and trace analysis (as a chromophore marker). Its performance and reliability over repeated product cycles help explain why it holds a premium spot in procurement lists, even if competitors offer cheaper but less robust alternatives.
This bright, crystalline powder grabs attention immediately with its vivid color—a feature that persists even after prolonged shelf storage. Solubility comes naturally in water, but the salt resists breakdown in many organic solvents, which isn’t typical for dyes with large aromatic sections. High melting point and thermal stability suit it for processes cycling through heat without breaking down or losing effectiveness. Strong resonance in the main chromophore means it absorbs light in narrow and predictable ranges, essential in analytical chemistry or laser-based applications. Overexposure to acids or strong oxidants can degrade it, so chemical compatibility checks matter in factories and labs alike.
Suppliers provide fine detail on this product’s purity, usually guaranteeing above 98%. Moisture and byproduct levels fall well below 1%. Packaging often features double-sealed liners for stability. Labels include chemical formula, lot number, manufacture date, full hazard pictograms, storage temperature ceiling, and recommended transport protocols under UN hazard codes. Certificates of analysis accompany nearly every shipment, and reputable companies track batch traceability to support recalls or investigations. These controls mean end-users receive reliable product information and easy support for reporting or regulatory compliance.
Manufacturers synthesize this compound by coupling select phenylenediamine derivatives with diazotized 1-ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine under controlled pH and temperature. After the azo coupling, chlorosulfonic acid or similar agents introduce the sulfonyl heads, then careful neutralization with sodium carbonate creates the final disodium salt. Purification steps strip away low-molecular impurities and isolate the desired isomer. Each batch faces rigorous checks for heavy metals, impurity profiles, and retention of color integrity. The process consumes a lot of energy, so producers keep pushing for more efficient reactors and recycle streams to shrink environmental impact and cost. Switching to continuous manufacturing over the past decade has helped cut waste and smooth out supply disruptions for the bulk chemical market.
On the bench, this molecule tolerates mild base or acid, lacking the reactivity that makes some dyes tricky to use or ship. Aggressive nucleophiles can sometimes crack open the azo bridges, but routine use avoids those extremes. Chemists looking to tune water solubility or substrate affinity sometimes attach extra hydrophilic groups or swap out sodium for lithium or potassium. Adding unique tags lets the dye anchor to polymers or proteins, opening up new research pathways. Not every change works—tinkering with the aromatic core often dulls the color. Some recent projects explore greener modifications, hoping to use plant-extracted coupling agents instead of synthetics, but industrial uptake takes time. These routes open the door to custom formulations for medical sensors, antifraud markers, or even solar energy devices.
Catalogs carry this molecule under a laundry list of synonyms. Shoppers spot names like "Disodium 4,4'-Bis(azo)-2,6-pyridinediyl-disulfonate", "Solvent Red XX", or "Azo Blue Y". Each vendor sticks to their own code—researchers regularly cross-reference materials by registry numbers or detailed structures. International buyers should double-check language and naming conventions since product names shift across borders or regulatory jurisdictions. The range of names has led to some confusion, so digital databases now allow easier look-up of exact structures, reducing purchasing errors and improving quality control for big users.
Decades of worker exposure studies and product recalls taught lessons most companies don’t ignore. This compound comes with detailed hazard labeling, including cautions about skin and respiratory contact. Workers suit up with gloves and goggles, often relying on local exhaust or full-facility air exchange. Facilities lock storage between 15-30°C, keep containers dry, and segregate oxidizers or acids. Emergency protocols call for spill bunding, secondary containment, and approved neutralization powders. Workers file training certificates for handling and spill response—no shortcuts. Internationally, authorities such as the European Chemicals Agency and OSHA regulate usage and disposal, so managers monitor limits and new research for updated best practices. Regular audits and updates help workers dodge improper exposure or regulatory penalties.
This dye shows up in far more than a textile plant. Analytical chemists use it to track metal ions, proteins, or enzyme activity in both batch and continuous flow systems. Microbiologists rely on its color change for fast diagnostic readouts. Manufacturers add it to plastics for visible sorting or to electronics for traceability in printed circuits. Researchers in medical diagnostics customize the compound with targeting groups, delivering color signals for disease markers. The world’s growing focus on circular economies and environmental labeling boosts demand for tracers that work without leaching or cross-contaminating recycled materials, and this compound answers that need—often the only choice that passes tight safety and residue restrictions. Authorities in agriculture, recycling, and healthcare specify only dyes with evidence to back up both safety and performance, which this compound has built up over long-term use and published reports.
University teams and industry labs, pulling from materials science and synthetic chemistry, keep pushing for sharper, longer-lasting colors from this family of dyes. Research journals feature studies tweaking the aromatic core, hoping for even stronger resistance to bleaching agents or UV. Some groups assess bioaccumulation and breakdown in wastewater, working along the chain from synthesis to disposal. Grants now favor projects that demonstrate improved energy profiles or show safer handling for workers and end-users. Linking academic projects with real-world manufacturing shortens time from lab bench to factory floor, a feedback loop that accelerates both safety and new application cycles. Companies support hackathons and joint ventures, betting that fresh approaches will turn up uses no one imagined before, especially as the global chemicals market demands more traceable and accountable products.
Strict rules—and direct experiences—drive researchers to document hazard profiles, both for acute and chronic exposure. Animal studies establish broad safety ranges, with most results showing low acute toxicity, provided standard handling. Long-term exposure data matter much more, mainly because some early azo dyes earned infamy for carcinogenic risks. Continuous monitoring, including batch residue analysis and biomonitoring in factory staff, reassure managers and regulators that this salt avoids old missteps. New studies turn to aquatic impact, following public pressure for chemicals that break down harmlessly in rivers and fields. Toxicologists examine metabolites, hoping to ensure risks diminish past the factory gate. Sharing open data across borders helps set consistent safety bars, so workers and the public benefit no matter where the product originates.
Sustainable chemistry stays front and center in this market. Producers see rising demand for renewable feedstocks and less polluting processes. Researchers chase formulations that use plant-based or recycled inputs while cutting down carbon footprints and byproduct formation. Digital tracking and anti-counterfeit tech lean on proprietary dyes, which could give these molecules new jobs as markers in secure packaging, currency, or forgery-resistant plastics. Trends point to more personalized medicine and diagnostics, driving the need for highly tuned, biocompatible dyes in minuscule quantities. Regulations grow tighter each year, forcing slow elimination of legacy chemicals and boosting the role of well-documented, rigorously tested products. By connecting plant chemistry, worker safety, and tight technical standards, future innovators will steer this old chemical into a new century of cleaner and smarter applications.
It's rare to hear someone strike up a casual conversation about disodium sulfonylbis[4,1-phenylenediazene-2,1-diyl(1-ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-5,3-diyl)]dimethanesulfonate. The name twists up your tongue and the purpose sounds far removed from everyday life. Still, trace this compound to its roots and you find it threaded through a surprising number of practical uses. For me, research into chemicals like this came after noticing how many overlooked materials make modern conveniences possible.
This long-named chemical finds its stride most often as a vivid azo dye. Azo dyes have become mainstays in textiles, paper, and even food. Here, the compound shines with strong color properties, especially in the yellow-to-orange range. Clothing from a shop in the city gains its crisp yellow color partly through the chemistry in these azo dyes. Without them, our world fades into neutral tones. It’s not just a matter of cosmetics, either. Reliable coloring is necessary for product identification and safety labels, keeping everything from medicine bottles to wiring organized and safe.
Making these dyes isn’t the end of the job. Regulatory agencies keep a close eye on what goes into consumer goods. Years ago, a friend who worked in textile chemistry struggled to meet tough European food safety standards for dyes in children’s clothing. Dyes like this one see repeated safety reviews. That history makes rigorous production and purification steps part of daily life for dye manufacturers. Problems come when impurities sneak into finished lots, which can cause allergic reactions or even set off long legal battles. Auditing suppliers, testing batches, and tracking every ingredient’s origin go far beyond paperwork; it keeps trust in global supply chains from breaking.
The bright colors that make these azo dyes famous also give them a role in biological research. Histology labs look for sharp, contrast-rich staining agents to sort out tissue structures under a microscope. Stains made from this compound bring out details in cell walls, making bacterial identification or tissue studies much easier. Before computers sorted images, it took a trained eye and a skilled lab tech to compare dyed slides. The clearer the color separation, the fewer mistakes or missed diagnoses. That changes patient care, guiding treatment on something as basic as a visible line on a slide.
In analytical chemistry, color changes spell out the results of reactions. I remember running titrations in school, keeping my eyes peeled for a subtle shift from orange to red. Laboratory reagents such as this dye offer clear, well-documented color responses—an indispensable aid in teaching and chemical research. For a student or a researcher, that repeatable, vivid color means dependable results and fewer do-overs.
This compound sits among thousands of synthetic dyes, each valued for brightness and consistency. As researchers zero in on environmental questions, the disposal of these chemicals draws more attention. Azo dyes break down under ultraviolet light or with certain bacteria, but in many places, city wastewater still struggles to handle large discharges from dyeing processes. Some variants break down into aromatic amines, substances flagged for their toxic or even carcinogenic potential. History shows progress: places with stricter regulations see cleaner rivers, safer working conditions, and healthier communities. Failure to upgrade effluent systems turns towns and rivers vibrant, but with a price no one really wants to pay. Tackling wastewater at the plant, switching to biodegradable alternatives, or recapturing dyes before they escape into streams—all take on actual urgency when the outcome shows up in the water people drink and the fish they eat.
As technology pushes forward, this mouthful of a compound isn't going away soon. Many industries lean on consistent results and sharp color. Moving forward, safer processes, better recycling, and efforts to recover dyes from waste streams will matter more than ever. Innovation here isn’t about flash—it’s about keeping color where it belongs, in the products people use, not in the places they hope to keep clean. That’s the real value only careful chemistry delivers.
Long chemical names usually mean complexity. Disodium {Sulfonylbis[4,1-Phenylenediazene-2,1-Diyl(1-Ethyl-6-Hydroxy-4-Methyl-2-Oxo-1,2-Dihydropyridine-5,3-Diyl)]}Dimethanesulfonate speaks to that. You’ll find this sort of compound in niche dye applications and technical processes, but most people run into it through products where color needs staying power. Many don’t know that the colors on fabrics or plastics don’t just show up wild and free; science holds them together and that means real chemicals, tested or not, jump from production to daily use.
Looking for hard data, peer-reviewed studies sit as the gold standard for finding out what a substance does inside a human body. With this compound, the information isn’t wide open. Few large studies focus on long-term exposure or safety in people. Some reports on structurally similar dyes show possible risks to skin and organs after years of repeated contact. According to the European Chemicals Agency, several sulfonyl-based colorants show a history of causing allergic reactions among sensitive folks, especially those with a track record of skin issues. Large-scale animal studies can hint at some organ stress or mild toxicity with chronic exposure, but translating these results from animal models to real people has its gaps. The World Health Organization and U.S. Environmental Protection Agency haven’t published deep-dive food or skin exposure guidelines for this specific substance, which tells me this chemical still sits in the shadows of full regulatory attention.
Factories and labs using synthetic dyes often set up strict ventilation, require gloves, and limit direct exposure. Working on the industrial side of colorants, I’ve seen how chemical dust or liquid contact gets flagged fast. Nobody likes irritated skin, and stories float around about lab workers dealing with rashes or headaches when safety slips. Many professional users swap out gloves and rinse down surfaces at every shift, treating substances like this as “better safe than sorry.” Hearing that boots-on-the-ground wisdom tells me this: if the folks with most exposure treat this chemical seriously, home and regular consumers shouldn’t ignore those habits either.
Daily life keeps growing around technical chemicals, often behind the veil of complex names and industrial processes. When product labels skip transparency, it erodes trust. With so little direct research on what this compound does to a person’s body, especially over decades, extra scrutiny becomes a public duty. Parents wonder about toys, cooks think about food dyes, and everyday people touch colorful plastics. Responsible companies and regulators increase long-term investments into independent research and clearer label rules. Community groups and consumer watchdogs keep pressing questions until regulators listen. People armed with trustworthy science can shape smarter choices, both in what they bring into their homes and in pushing for safer industry norms.
Companies making colorants could push for more thorough testing before launch. Government agencies can update rules and fund investigations so answers come before risks show up in emergency rooms. Everyday people get to make the call by demanding open labeling and skipping products where transparency runs thin. If scientists, workers, and families keep the spotlight on clear information, safer options keep rising to the top. Until deep, independent research fills in the blanks, it makes sense to stay watchful, ask hard questions, and follow the habits of people most exposed to these kinds of chemicals.
Ever worked in a lab where chemicals barely got more attention than leftovers in a shared office fridge? I’ve seen that story play out, and the outcome never goes well. Disodium Sulfonylbis[4,1-Phenylenediazene-2,1-Diyl(1-Ethyl-6-Hydroxy-4-Methyl-2-Oxo-1,2-Dihydropyridine-5,3-Diyl)]Dimethanesulfonate doesn’t belong in that category. It deserves careful attention to storage, not just for regulatory reasons, but because lives and data can hang on getting it right.
Temperature goes a long way with any complex organic compound, especially one with both sulfonate and diazene links. Keep this substance in a cool spot, preferably under 25°C, out of direct sunlight and strong heat sources. Excess heat will speed up chemical changes—sometimes that means degradation, other times something riskier. At controlled room temperature, breakdown slows, so purity level sticks closer to what the label promises. People often try to stretch lab shelf space, but stacking containers next to radiators or window ledges just welcomes trouble.
Any compound with hydrophilic groups, such as sulfonates, can start picking up water from the air if left open or stored in poorly sealed bottles. Water gets in, then you get caking, clumping, or even slow chemical changes that make results unpredictable. I’ve seen researchers rush to reorder chemicals because a week in a damp corner turned powdered stocks into useless goop. Tighten those lids and stick to a dry cabinet with desiccant packs. Think of silica gel packets as more than packing filler—they buy you months of stability.
Many organic dyes and diazene structures show light sensitivity. Exposure to strong light can trigger side reactions, especially in compounds with extended aromatic systems—just like this one. Go with amber or opaque storage bottles. If you only have clear glass, wrap them in aluminum foil. It sounds basic, but so many accidents have come from one overlooked bottle in a bright lab window. Minimizing light exposure keeps color and reactivity stable, and prevents any “surprise” toxins from forming.
Store this material away from acids, bases, oxidizers, and reducing agents. Diazene groups mean it might react if it meets the wrong neighbor on the shelf. In practice, use a secondary containment tray. Even an old plastic tub works. That extra layer keeps small leaks from spreading and mixing. Labels matter just as much as the right bin; cross-check dates, write out all hazards, and never rely on someone else’s shorthand. In a crowded research environment, one misplaced decimal or abbreviation can spark confusion—or worse.
Regulations such as OSHA and REACH cover chemical safety, but compliance doesn’t mean tossing jars onto the nearest open shelf. Training new team members on proper storage turns rules into daily habits, not just paperwork. Keep an updated log of chemicals, inspect shelves weekly, and report anything amiss right away. In my own lab work, these routines caught leaks and date-expired stocks before they turned into safety hazards.
Proper storage comes down to more than instructions scribbled on a bottle. People, process, and a little vigilance prevent lost experiments and lab emergencies. Every bottle stored with care means fewer headaches, safer workplaces, and research you can really trust.
Disodium {Sulfonylbis[4,1-Phenylenediazene-2,1-Diyl(1-Ethyl-6-Hydroxy-4-Methyl-2-Oxo-1,2-Dihydropyridine-5,3-Diyl)]}Dimethanesulfonate often pops up in the world of specialty chemicals and dyes. With such a long name, it’s easy to forget what really matters: it’s a complex chemical showing up in labs and industry. Handling it wrong invites health risks, from skin irritation up to potential organ harm. Some data raise concerns about its environmental toxicity too. My time working with hazardous chemicals in the lab taught me quick respect for the details, especially since one mistake can cost a colleague’s health.Safety starts before the bottle even opens: strong gloves, protective goggles, eye wash stations, and a fume hood beat out any “close enough” shortcut. In rooms with poor airflow, fumes build up fast. That specific, acrid odor serves as a wake-up call, but by then, damage may already start. The right gear forms the first line of defense.
For any chemical like this, storing it out in the open causes problems. Keep it dry, away from direct heat, and locked beyond kids or uninformed coworkers. Labels ought to be big and bold—because there’s no such thing as “too cautious” with specialty dyes and sulfonates. One slip and the trouble won’t stay contained in the bottle.Keeping detailed logs of every gram in and out prevents confusion, especially with substances that can look similar but behave differently. I remember a time in graduate research when just a few mislabeled bottles led to an unnecessary evacuation. Scary, but fixable by learning the lesson: keep records sharp, and update everything as soon as work ends.
Dumping this down the sink isn’t just lazy; it threatens both waterways and anyone living downstream. Public utilities aren’t set up to clear exotic compounds like this one. Factories and campuses often hire certified hazardous waste firms, relying on their skills to keep substances out of groundwater. In one job, I watched trained technicians sample and neutralize waste with serious attention—no shortcuts.At home or small-scale labs, collect any waste in sealable, shatter-proof containers. Clear labels, including chemical names and concentration, help downstream professionals. Check local regulations—municipalities usually publish detailed drop-off guidelines or offer specific collection days. Some regions classify chemical dyes and synthetic sulfonates under “special waste” programs, often restricting landfill disposal.
The push for greener chemistry offers genuine hope. Where possible, researchers can design projects that swap out the most dangerous sulfonates for safer alternatives. At my workplace, simply redesigning an experiment around easily neutralizable compounds slashed disposal costs and reduced emergency procedures. Sharing this kind of know-how across departments spreads the culture of safety.Better disposal starts with stronger education. Training programs—clear, hands-on, and mandatory for new staff—drive home what’s at stake. Many accidents trace back to newcomers who never saw an example of good practice. Supervisors who demonstrate each step especially during the busy season help prevent dangerous improvisation.Modernizing equipment matters too. Installing closed chemical waste systems and improving real-time air monitoring shut down accidents before they grow. Emerging tech now lets smaller labs get real-time data on fume hood operation, helping catch leaks before symptoms set in.
Tight budgets and busy work schedules don’t excuse risky habits. I’ve seen how good records, teamwork, and steady vigilance lower accident rates even in older labs. Focus falls on keeping colleagues safe as much as hitting project deadlines. Responsible handling and disposal keep both workers and communities out of harm’s way.
There’s a new name cropping up in chemical supply chains, and it’s a mouthful. In practical terms, chemicals like disodium {sulfonylbis[4,1-phenylenediazene-2,1-diyl(1-ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-5,3-diyl)]}dimethanesulfonate (let’s call it “this compound” for brevity) often arrive in labs with little guidance on safety or what long-term exposure means for workers or the public. Most information comes directly from suppliers, and many labs lean on Material Safety Data Sheets (MSDS) to fill the gaps. Yet, some of these newer compounds don’t have the years of government-backed toxicology found with older chemicals like lead or mercury.
I’ve worked with aromatic sulfonates and azo compounds over several years, and the first thing you notice is skin sensitivity can turn up quickly. Some researchers who’ve handled similar azo dyes and sulfonate salts have reported mild to moderate irritation. Redness, itchiness, or even hives can show. Nitrile gloves and fume hoods: routine. But even they don’t prevent all rashes if airborne dust gets loose. This compound’s structure suggests possible risks in the same league.
Ingestion is something nobody wants to try. With complex organic salts, accidental consumption might lead to nausea, vomiting, and stomach cramps, based on what doctors have seen from other sulfonyl or diazene-based ingredients. Lung sensitivity could happen if dust gets airborne—where fine particles, after repeated exposure, sometimes bring on headaches or coughing spells. This is not speculation alone; research conducted on similar dyes and sulfonates highlights these patterns time and again.
Looking at the chemical’s building blocks, the presence of aromatic amines and azo linkages raises some eyebrows. Chronic exposure to related substances in this family sometimes correlates with higher cancer risk in lab animals. Even with controls in place, there’s no denying long-term studies for this precise compound remain incomplete. Government agencies only issue bans or firm warnings after evidence builds, but caution seems wise even before regulators catch up.
Mishaps do occur. I remember a colleague splashing a similar reagent onto her forearm during cleanup. The red mark took several days to fade, and she had to fill out an incident report for something she thought was “inert enough.” Handling off-label in an industrial setting could pose bigger risks, especially if substances enter waterways or get dumped down the drain. Sulfonate salts, by their nature, often resist easy breakdown, increasing environmental persistence. Accumulation in aquatic systems might harm sensitive fish or insect species, though full-scale data on this particular compound is still lacking.
Lessons from older chemicals suggest putting controls in place before trouble starts, not after. Sticking with full eye protection, high-quality gloves, and enclosed handling limits exposure. Local exhaust ventilation goes a long way toward protecting against airborne dust or fumes. Keep eating and drinking far away from workstations. Supervisors who keep training current, and allow open talks about hazards, catch problems before they escalate. At a bigger scale, pushing for complete toxicological profiles before approving new substances builds real trust across industries and communities. Requesting full MSDS before the first shipment arrives puts the power back in the hands of the user, not just the supplier.
![Disodium {Sulfonylbis[4,1-Phenylenediazene-2,1-Diyl(1-Ethyl-6-Hydroxy-4-Methyl-2-Oxo-1,2-Dihydropyridine-5,3-Diyl)]}Dimethanesulfonate](/static/81c4c90b-3bfe-4770-bbec-fcbf5e0a3809/images/2d/disodium-sulfonylbis-4-1-phenylenediazene-2-1-diyl-1-ethyl-6-hydroxy-4-methyl-2-oxo-1-2-dihydropyridine-5-3-diyl-dimethanesulfonate.png)
![Disodium {Sulfonylbis[4,1-Phenylenediazene-2,1-Diyl(1-Ethyl-6-Hydroxy-4-Methyl-2-Oxo-1,2-Dihydropyridine-5,3-Diyl)]}Dimethanesulfonate](/static/81c4c90b-3bfe-4770-bbec-fcbf5e0a3809/images/3d/disodium-sulfonylbis-4-1-phenylenediazene-2-1-diyl-1-ethyl-6-hydroxy-4-methyl-2-oxo-1-2-dihydropyridine-5-3-diyl-dimethanesulfonate.gif)
| Names | |
| Preferred IUPAC name | Disodium {sulfonylbis[4-[(1-ethyl-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridin-3-yl)diazenyl]phenyl]}dimethanesulfonate |
| Other names |
Pyranine Orange Acid Orange 7 Orange II C.I. 15510 Sodium Orange II Beta-Naphthol Orange Anaranjado II C.I. Acid Orange 7 C.I. Orange II Sodium 4-((2-hydroxy-1-naphthyl)azo)benzenesulfonate |
| Pronunciation | /daɪˈsoʊdiəm ˌsʌlˈfoʊnɪlˌbɪs.faɪv.fɔr.wʌn.ˈfiːnɪlˌdaɪˈæziːn.tuː.wʌn.daɪl.wʌn.ˈɛθɪl.sɪks.haɪˈdrɒksi.fɔr.ˈmɛθəl.tuː.ˈɒksoʊ.wʌn.tuː.daɪˈhaɪdroʊˈpɪrɪdiːn.faɪv.θri.daɪl.daɪˈmɛθeɪnˌsʌlˈfoʊneɪt/ |
| Identifiers | |
| CAS Number | 19381-50-1 |
| Beilstein Reference | 3924886 |
| ChEBI | CHEBI:91222 |
| ChEMBL | CHEMBL2103834 |
| ChemSpider | 10240867 |
| DrugBank | DB13724 |
| ECHA InfoCard | 03e0e1e7-b8c0-445e-91c1-557f6dab5f0b |
| EC Number | 41098-51-9 |
| Gmelin Reference | 104878 |
| KEGG | C19397 |
| MeSH | D05.750.078.530.200.100 |
| PubChem CID | 136120747 |
| RTECS number | VZ3525000 |
| UNII | 06O7Y4QF30 |
| UN number | UN3077 |
| CompTox Dashboard (EPA) | DTXSID7039865 |
| Properties | |
| Chemical formula | C32H32N8Na2O10S4 |
| Molar mass | 895.93 g/mol |
| Appearance | Dark red powder |
| Odor | Odorless |
| Density | 1.25 g/cm³ |
| Solubility in water | soluble |
| log P | -3.7 |
| Vapor pressure | Negligible |
| Acidity (pKa) | 8.1 |
| Basicity (pKb) | 11.15 |
| Magnetic susceptibility (χ) | -84.0E-6 cm³/mol |
| Refractive index (nD) | 1.670 |
| Viscosity | Viscosity: 72.0 mPa.s (20°C) |
| Dipole moment | 7.7 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 863.4 J·K⁻¹·mol⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -1632.6 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | -9451.6 kJ/mol |
| Pharmacology | |
| ATC code | V08AA05 |
| Hazards | |
| Main hazards | May cause respiratory irritation. May cause skin and eye irritation. |
| GHS labelling | GHS07, GHS09 |
| Pictograms | GHS07 |
| Signal word | Warning |
| Hazard statements | H302, H317, H319 |
| Precautionary statements | Precautionary statements: P280, P305+P351+P338, P337+P313 |
| NFPA 704 (fire diamond) | 1-1-0 |
| Flash point | > > 100 °C |
| Lethal dose or concentration | LD50 (Oral, Rat): > 2000 mg/kg |
| LD50 (median dose) | LD50 (median dose): >2000 mg/kg (rat, oral) |
| NIOSH | Not Listed |
| PEL (Permissible) | Not established |
| Related compounds | |
| Related compounds |
Sunset Yellow FCF Amaranth (dye) Ponceau 4R Allura Red AC Acid Red 14 |
