Product Name: 2-Aminobenzenesulphonic Acid
Synonyms: Orthanilic acid, o-Aminobenzenesulfonic acid
Chemical Formula: C6H7NO3S
CAS Number: 88-21-1
Recommended Use: Intermediate for dyes, pharmaceuticals, and chemical synthesis
Manufacturer: Name, address, emergency contact number, business telephone number
GHS Classification: Eye irritation (Category 2A), Skin irritation (Category 2), Acute toxicity (Category 4, oral)
Hazard Statements: Causes eye and skin irritation, harmful if swallowed
Signal Word: Warning
Pictograms: Exclamation mark
Precautionary Statements: Avoid breathing dust, prevent contact with skin and eyes, wash thoroughly after handling, do not eat or drink when using this product
Routes of Exposure: Inhalation, ingestion, skin contact, eye contact
Potential Health Effects: May cause inflammation or irritation of mucous membranes, redness or soreness on skin and eyes, stomach pain or nausea if ingested
Chemical Name: 2-Aminobenzenesulphonic Acid
Concentration: 98% or higher
Impurities: Less than 2%, variable depending on manufacturer
Molecular Weight: 173.19 g/mol
Other Components: Traces of inorganic salts (sodium or potassium, depending on synthesis process)
Inhalation: Remove person to fresh air, seek medical attention if symptoms develop, keep airway clear
Skin Contact: Remove contaminated clothing, thoroughly wash skin with plenty of water and soap, seek medical attention if irritation persists
Eye Contact: Immediately flush eyes with running clean water for at least 15 minutes, hold eyelids apart, seek medical assistance
Ingestion: Rinse mouth with water without inducing vomiting, give water to drink, seek immediate medical help
Notes to Physician: Treat symptomatically, monitor for signs of allergic or respiratory reaction
Suitable Extinguishing Media: Carbon dioxide, dry chemical powder, foam, water spray
Special Hazards: May produce toxic fumes containing nitrogen oxides and sulfur oxides during combustion
Protective Equipment: Firefighters should wear self-contained breathing apparatus and full protective gear
Advice for Firefighters: Move containers from fire area if it can be done safely, cool containers with flooding quantities of water
Hazardous Combustion Products: Nitrogen oxides, sulfur oxides, carbon monoxide, carbon dioxide
Personal Precautions: Wear gloves, goggles, and dust mask to avoid contact and inhalation
Environmental Precautions: Prevent further leakage or spillage if safe, avoid discharge into drains, soil, or waterways
Methods for Clean-Up: Sweep up solid material, avoid dust formation, collect in suitable covered containers for disposal, ventilate area
Decontamination: Wash spill area thoroughly with water and detergent, collect washings for disposal
Handling Recommendations: Handle in well-ventilated place, avoid formation of dust, use personal protective equipment, wash hands thoroughly after handling, prevent contact with eyes, skin, and clothing
Storage Conditions: Store in cool, dry, well-ventilated area, keep container tightly closed, separate from incompatible substances such as strong oxidizing agents
Storage Temperature: Store at ambient temperature, away from heat sources and direct sunlight
Incompatibilities: Strong oxidizers, acids, alkalis
Exposure Limits: No specific occupational exposure limits established
Engineering Controls: Use local exhaust ventilation or general room ventilation to minimize exposure
Personal Protective Equipment: Safety goggles, disposable gloves, protective clothing (lab coat or apron), dust mask or NIOSH approved respirator if dust is generated
Hygiene Measures: Do not eat, drink, or smoke during use, wash hands and face after handling, remove contaminated clothing and equipment before entering eating areas
Appearance: White to off-white crystalline powder
Odor: Odorless
Melting Point: 300°C (decomposes)
Boiling Point: Not applicable
Flash Point: Not flammable under standard conditions
Solubility: Soluble in water, slightly soluble in alcohol, insoluble in non-polar solvents
pH (aqueous solution): 2-3 (1% solution)
Vapor Pressure: Negligible
Specific Gravity: 1.59 g/cm³
Partition Coefficient (n-octanol/water): Not available
Evaporation Rate: Not volatile under room conditions
Chemical Stability: Stable under normal handling and storage conditions
Stability under Storage: Remains stable if kept dry and protected from extreme conditions
Reactivity: Reacts with strong oxidizing agents
Hazardous Decomposition Products: Sulfur oxides, nitrogen oxides, carbon oxides under fire or extreme heat
Possibility of Hazardous Reactions: No dangerous reactions known under normal use
Incompatible Materials: Strong oxidants, strong acids, strong alkalis
Conditions to Avoid: Exposure to moisture, high temperatures, direct sunlight
Acute Toxicity: LD50 (Oral, rat) approximately 1000-2000 mg/kg
Routes of Exposure: Inhalation, ingestion, eye and skin contact
Symptoms of Exposure: Skin/eye irritation, redness, itching, gastrointestinal upset if ingested, cough or throat discomfort if inhaled
Chronic Effects: No long-term effects documented with regular occupational exposure
Carcinogenicity: Not listed as carcinogen by IARC, NTP, or OSHA
Mutagenicity: No data available indicating mutagenic effects
Reproductive Effects: No evidence of reproductive toxicity based on available information
Ecotoxicity: Harmful to aquatic life in large quantities, limited data available
Persistence and Degradability: Expected to be biodegradable under environmental conditions
Bioaccumulative Potential: Low potential due to high water solubility
Mobility in Soil: Likely to migrate in aqueous environments
Other Adverse Effects: Avoid release to environment, monitor effluents, comply with local regulations for discharge
Waste Treatment Methods: Collect and arrange for disposal through licensed contractor
Disposal Containers: Use sealed, labeled containers
Waste Code: Not classified as a hazardous waste under RCRA but must be disposed of in accordance with local, regional, national, and international regulations
Precautions for Disposal: Do not dump into drains, water, or soil; minimize release to the environment
Contaminated Packaging: Dispose of as unused product, rinse containers before recycling or disposal
UN Number: Not regulated for transport
Proper Shipping Name: 2-Aminobenzenesulphonic Acid
Transport Hazard Class: Not a hazardous material according to transport regulations
Packing Group: Not regulated
Environmental Hazards: Not classified as a marine pollutant
Special Precautions: Ensure packaging prevents leakage during transport, protect from weather and physical damage
US TSCA: Listed
EU EINECS/ELINCS: Listed (201-828-7)
Canadian DSL: Listed
Labeling Requirements: Comply with local labeling and hazard communication standards
OSHA Hazards: Eye and skin irritant
SARA Title III: Not subject to reporting
Other Applicable Regulations: Comply with all relevant local, national, international guidelines for classification, labelling, packaging, and transport of chemicals
