Product Name: Guanidinethiouronium Ethanesulfonic Acid
Synonyms: GES Acid, Guanidinoethylsulfonate
Chemical Formula: C3H10N4O3S2
CAS Number: 123456-78-9
Recommended Use: Analytical chemistry, research, biotechnology applications
Supplier Information: [Supplier Name], [Supplier Address], [Supplier Contact Number], [Email]
Emergency Telephone Number: [24-hour emergency contact]
GHS Classification: Not classified as hazardous according to OSHA Hazard Communication Standard (29 CFR 1910.1200)
Label Elements: None required; precautionary statements may apply
Physical Hazards: No significant immediate physical hazard under normal conditions
Health Hazards: May cause mild skin or eye irritation in sensitive individuals; not known to cause sensitization
Environmental Hazards: No severe environmental risk expected from accidental release of small quantities
Routes of Exposure: Inhalation, skin and eye contact, ingestion
Signal Word: None
Pictograms: Not required
Chemical Name: Guanidinethiouronium Ethanesulfonic Acid
Common Name/s: Guanidine-thiourea compound
CAS Number: 123456-78-9
Purity: >98% (based on batch QC data)
Other Ingredients: None
Molecular Weight: Approx. 230.27 g/mol
Impurities Contributing to Hazard: No known significant impurities contributing to hazard classification
Mixture: Not a mixture; single substance
Inhalation: Move to fresh air, seek medical attention if symptoms such as coughing or shortness of breath occur
Skin Contact: Remove contaminated clothing; wash affected skin thoroughly with plenty of water and soap; get medical attention if irritation develops
Eye Contact: Immediately flush eyes with clean water for at least 15 minutes, holding eyelids apart; consult physician if irritation persists
Ingestion: Rinse mouth with water, give water to drink if conscious; do not induce vomiting unless directed by medical personnel; seek immediate medical advice
Most Important Symptoms and Effects: Mild irritation to skin, eyes, or mucosa in susceptible individuals possible
Notes to Physician: No specific antidote known; treat symptomatically based on clinical judgment
Suitable Extinguishing Media: Carbon dioxide, foam, dry chemical powder, water spray
Unsuitable Extinguishing Media: Strong water jet may spread material
Special Hazards Arising from the Chemical: May emit ammonia, nitrogen oxides (NOx), sulfur oxides, other toxic fumes during combustion
Advice for Firefighters: Wear self-contained breathing apparatus and fully protective firefighting gear; consider possible decomposition products
Thermal Decomposition: Can release irritating or toxic gases if involved in a fire
Additional Information: Limit runoff to prevent environmental contamination
Personal Precautions: Avoid dust generation; wear safety goggles, chemical-resistant gloves, lab coat
Environmental Precautions: Prevent entry into drains, surface water, soil
Spill Cleanup Methods: Sweep up carefully using appropriate tools; collect into suitable containers for disposal without causing dusty conditions
Decontamination: Wash affected surfaces with water and detergent after removal
Disposal: Dispose of spills in line with local, regional, and national regulations
Emergency Procedures: Ensure adequate ventilation, evacuate non-essential personnel
Precautions for Safe Handling: Use in well-ventilated area; avoid contact with skin, eyes, clothing; do not eat, drink, or smoke while handling
Handling Procedures: Use approved chemical fume hood for dust-generating processes
Storage Conditions: Store tightly closed in cool, dry, well-ventilated place away from incompatible substances such as strong oxidizers; store in original packaging
Storage Temperature: Room temperature (15–25°C) recommended
Incompatibilities: Avoid strong acids, bases, oxidizers that could trigger hazardous reactions
Exposure Limits: No occupational exposure limits established for Guanidinethiouronium Ethanesulfonic Acid
Engineering Controls: Maintain adequate ventilation especially in confined or dusty areas; local exhaust recommended
Personal Protective Equipment: Chemical splash-proof goggles, chemical-resistant gloves (nitrile recommended), lab coat
Respiratory Protection: Use NIOSH-approved respirator for dust if ventilation is inadequate
Other Protection: Avoid open skin exposure; eye wash facility and safety shower recommended in work area
Hygiene Measures: Wash hands thoroughly after handling; remove contaminated clothing and wash before reuse
Environmental Controls: Avoid release to environment; control waste streams using standard waste management practices
Appearance: White to off-white crystalline powder
Odor: Odorless or faint sulfurous smell
Odor Threshold: Not determined
pH (1% solution): 2.5–3.5
Melting Point / Freezing Point: Decomposes above 200°C (exact value may vary by batch)
Boiling Point / Range: Not applicable (decomposes before boiling)
Solubility: Soluble in water, methanol
Density: 1.7–1.8 g/cm³
Vapor Pressure: Not applicable
Vapor Density: Not applicable
Partition Coefficient: Not determined
Flash Point: Not flammable
Evaporation Rate: Not applicable
Flammability: Not considered flammable under typical use
Explosive Properties: Not explosive
Oxidizing Properties: Not an oxidizer
Auto-ignition Temperature: Not determined
Decomposition Temperature: >200°C
Chemical Stability: Stable under recommended storage conditions
Reactivity: No significant reactivity under normal laboratory conditions
Conditions to Avoid: Excessive heat, moisture, incompatible materials, open flames
Incompatible Materials: Strong oxidizing agents, strong acids or bases
Hazardous Decomposition Products: Ammonia, sulfur oxides, nitrogen oxides, carbon monoxide and dioxide under thermal decomposition
Polymerization: Will not occur
Corrosivity: Not corrosive to common materials under typical laboratory usage
Sensitivity to Static Discharge: Not expected to be sensitive
Likely Routes of Exposure: Skin, eye, inhalation, ingestion
Acute Toxicity Data: Limited data; based on component structure and analogy to related compounds, acute oral, dermal, or inhalation toxicity is expected to be low
Skin Irritation: Possible mild transient irritation
Eye Irritation: Possible mild irritation; no permanent damage with prompt washing
Carcinogenicity: No component listed by IARC, NTP, or OSHA as carcinogen
Mutagenicity: No evidence from available studies
Reproductive Toxicity: No evidence of adverse reproductive effects in published data
Bioaccumulation: Not expected based on water solubility and molecular structure
Target Organs: No data indicating target organ toxicity from regular use
Symptoms after Exposure: Mild mucous membrane, respiratory, or gastrointestinal irritation in rare cases
Sensitization: No data showing skin or respiratory sensitization
Ecotoxicity: Not likely highly toxic to aquatic life in environmental concentrations expected from regular use
Persistence and Degradability: Data not available, though structure suggests moderate environmental stability
Bioaccumulative Potential: Low potential as indicated by high water solubility and lack of lipophilicity
Mobility in Soil: High mobility likely in aqueous phase due to solubility
Other Harmful Effects: No specific data indicating chronic ecological effects; prudent to avoid uncontrolled environmental release
Aquatic Impact: Large spills could cause temporary decrease in local pH and increase in nutrient load
Waste Treatment Methods: Dispose of in compliance with federal, state, and local regulations; do not discharge to natural waters
Product Disposal: Incinerate or landfill according to local environmental control guidelines
Container Disposal: Triple rinse empty containers; dispose as non-hazardous waste if allowable, or follow standard chemical waste protocols
Special Precautions: Do not reuse emptied chemical containers; handle using appropriate PPE during disposal
Hazardous Waste Code: Not regulated as hazardous under RCRA in typical quantities
Disposal Agents: Local chemical waste disposal contractor
Unused Material: Return to manufacturer or approved chemical recycler if possible
UN Number: Not regulated as dangerous goods
UN Proper Shipping Name: Not classified as hazardous for transport by air, land, or sea
Transport Hazard Class(es): Not regulated
Packing Group: Not assigned
Environmental Hazards: Not an environmentally hazardous substance
Special Precautions for User: None required; avoid packaging that might break or leak
Regulated in Bulk Transport: Not applicable; not a marine pollutant
Additional Transport Notes: Ship in well-sealed, labeled containers suited for chemical transport
US Federal Regulations: Not listed under SARA Title III, TSCA, or CERCLA
State Regulations: Not designated hazardous under California Proposition 65 or similar state laws
EU Regulations: Not classified or regulated as hazardous under Regulation (EC) No 1272/2008 (CLP)
International Chemical Inventories: Notified or exempted under most international inventories (REACH, DSL, AICS, ENCS, PICCS, KECI, IECSC)
Labeling Requirements: Standard laboratory chemical labeling
Workplace Labeling: Ensure workplace container labeling complies with GHS and local standards
Other Requirements: Maintain Safety Data Sheet accessible to personnel at all times; update in line with regulatory changes
