Product Name: Sodium (4-Nitrophenyl)Methanesulfonate
Synonyms: Sodium p-nitrophenylmethanesulfonate
Chemical Formula: C7H6NO5SNa
CAS Number: 55539-90-5
Recommended Use: Research laboratory chemical, synthesis intermediate
Supplier: Name, address, and emergency contact number provided by manufacturer
Emergency Contact: Local emergency number provided with shipment, CHEMTREC 1-800-424-9300
Classification: Eye irritation, category 2A; Skin irritation, category 2; Specific target organ toxicity (single exposure), category 3
GHS Label Elements: Exclamation mark pictogram, warning signal word
Hazard Statements: Causes serious eye irritation; may cause skin irritation; may cause respiratory irritation
Precautionary Statements: Avoid breathing dust; use personal protection; wash thoroughly after handling; if in eyes, rinse cautiously with water
Routes of Exposure: Inhalation, skin and eye contact, ingestion
Health Effects: Irritation to eyes, skin, respiratory tract; prolonged exposure may bring discomfort
Chemical Name: Sodium (4-Nitrophenyl)Methanesulfonate
Purity: ≥ 98%
Impurities: None significant per supplier analysis
Molecular Weight: 239.18 g/mol
Component Breakdown: Contains sodium cation, 4-nitrophenylmethanesulfonate anion
Eye Contact: Rinse cautiously with plenty of water for at least 15 minutes. Remove contact lenses if present. Seek medical attention if irritation persists.
Skin Contact: Wash with soap and water for several minutes. Remove contaminated clothing. Medical attention required for redness or discomfort.
Inhalation: Move victim to fresh air. Rest in position comfortable for breathing. Seek medical attention if symptoms continue.
Ingestion: Rinse mouth. Do not induce vomiting unless instructed by medical personnel. Get medical help if feeling unwell.
Most Important Symptoms: Irritation of eyes, skin, and throat. Shortness of breath possible after inhalation.
Suitable Extinguishing Media: Use dry chemical, CO2, water spray, or alcohol-resistant foam.
Specific Hazards: Combustion may release toxic gases including nitrogen oxides, sulfur oxides, and sodium oxide.
Protective Equipment: Wear chemical-resistant suit, gloves, boots, self-contained breathing apparatus
Special Precautions: Approach fire from upwind direction. Keep containers cool by spraying with water to prevent rupture.
Personal Precautions: Wear chemical-protective gloves, eyewear, and lab coat. Avoid dust formation. Insure adequate ventilation.
Spill Cleanup: Sweep up and place in a closed, labeled container. Avoid raising dust. Clean spill site with water.
Environmental Precautions: Do not allow material to reach drains or surface water. Notify environmental authorities for significant releases.
Handling: Work in exhaust-ventilated area, use chemical fume hood. Minimize dust generation. Prevent contact with eyes, skin, and clothing. Practice good hygiene after handling. Never eat, drink, or smoke in work area.
Storage: Store tightly closed in cool, dry, well-ventilated area away from incompatible substances such as strong acids and oxidizers. Keep container labeled and secure. Protect from moisture and direct sunlight.
Engineering Controls: Work on chemical in designated fume hoods or well-ventilated spaces. Use local exhaust to remove airborne particles.
Eye Protection: Safety goggles with side shields recommended.
Hand Protection: Chemical-resistant gloves (nitrile or neoprene). Inspect regularly for tears.
Skin Protection: Laboratory coat or apron. Long sleeves suggested.
Respiratory Protection: If dust exceeds workplace limits, use approved dust respirator.
Occupational Exposure Limits: No OSHA or ACGIH specific limits set. Keep airborne concentrations as low as possible.
Appearance: Pale yellow powder or solid
Odor: Odorless
Odor Threshold: Not applicable
pH: Slightly basic when dissolved in water
Melting Point: Information not widely reported, expect decomposition upon heating
Boiling Point: Not applicable (decomposes prior to boiling)
Solubility: Soluble in water; limited solubility in organic solvents
Vapor Pressure: Not relevant for solids
Density: Estimated near 1.6–1.8 g/cm³
Flash Point: Not determined
Evaporation Rate: Not applicable
Partition Coefficient: Not measured
Autoignition Temperature: Not established
Chemical Stability: Stable under recommended storage conditions. Sensitive to heat and strong light.
Possibility of Hazardous Reactions: Reacts strongly with strong oxidizing agents. Avoid contact with acids.
Conditions to Avoid: Moisture, extreme temperatures, direct sunlight, open flames
Incompatible Materials: Strong acids, oxidizers, reducing agents
Hazardous Decomposition Products: Nitrogen oxides, sulfur oxides, sodium oxide under fire or extreme heat
Likely Routes of Exposure: Inhalation, skin and eye contact, ingestion
Acute Toxicity: Oral toxicity not fully quantified, may irritate gastrointestinal tract based on structure
Skin Corrosion/Irritation: Reports suggest mild to moderate irritation possible
Serious Eye Damage/Irritation: Causes irritation, redness, tearing
Respiratory Sensitization: Dust may cause discomfort and coughing
Chronic Effects: No chronic toxicity studies; avoid long-term exposure to dust
Carcinogenicity/Mutagenicity: Not listed as a carcinogen by NTP, IARC, or OSHA; no mutagenicity data available
Other Effects: Repeated contact may increase skin sensitivity for certain individuals
Toxicity: Data limited; similar compounds can be harmful to aquatic organisms
Persistence and Degradability: Not expected to be readily biodegradable; chemicals with nitro and sulfonate groups often persist
Bioaccumulation Potential: Potential for accumulation in aquatic life low, but functional groups can enhance environmental mobility
Mobility in Soil: High solubility increases chance for ground water infiltration
Other Adverse Effects: Avoid uncontrolled releases, as chemicals may disrupt aquatic habitat mineral balance and microbial ecology
Waste Treatment Methods: Place material and contaminated cleanup debris in sealed, labeled containers. Dispose through licensed hazardous waste handler.
Disposal of Contaminated Packaging: Rinse empty containers, then treat as chemical waste.
Regulations: Follow state, local, and federal guidelines; RCRA hazardous waste number not assigned but treat as hazardous by default.
Environmental Precaution: Do not discharge into sewers or rivers.
UN Number: Not assigned under UN regulations
Transport Hazard Class: Not regulated as hazardous material under ADR, IMDG, IATA
Packing Group: Not assigned
Proper Shipping Name: Chemical for laboratory use, not otherwise specified
Special Precautions for User: Ship in original, secure packaging with MSDS attached. Avoid exposure to high humidity or rough handling.
OSHA: Not listed as a hazardous chemical but dusty conditions require standard worker protection
SARA Title III: Not considered a reportable substance on sections 302, 304, or 313
TSCA: Listed for research and development use; confirm inventory status as needed
California Proposition 65: Not listed at the time of writing
Inventories: Complies with major chemical inventories such as REACH, EINECS, TSCA (subject to context and use)
Other National Regulations: Check local environmental and workplace safety standards as these may vary
