Product Name: N-Methyl Pyrrole
Synonyms: 1-Methylpyrrole, N-Methyl-1H-pyrrole
Chemical Formula: C5H7N
Recommended Use: Intermediate for organic synthesis, research and analysis
Supplier: Registered chemical manufacturer or laboratory vendor
Emergency Contact: Refer to national poison control center or supplier's emergency response number
Classification: Flammable liquid, Acute toxicity (oral, dermal, inhalation), Skin and eye irritation
Label Elements: Warning symbol: flame, exclamation mark
Hazard Statements: May cause respiratory and skin irritation, serious eye irritation, harmful if swallowed or inhaled, flammable liquid and vapor
Precautionary Statements: Keep away from ignition sources, avoid breathing vapors, wash hands after handling, store in well-ventilated area
Signal Word: Warning
Other Hazards: Vapors heavier than air, may accumulate and ignite at distant points
Chemical Name: N-Methyl Pyrrole
CAS Number: 96-54-8
Concentration: 98–100% by weight
Impurities: Minor related pyrrole derivatives & residual solvents (manufacturer dependent)
Inhalation: Move to fresh air immediately, maintain open airway, seek medical advice if symptoms develop
Skin Contact: Remove contaminated clothing, rinse skin with plenty of water and mild soap for at least 15 minutes
Eye Contact: Rinse with copious water for at least 15 minutes, lifting eyelids periodically, obtain medical attention
Ingestion: Rinse mouth, do not induce vomiting, seek immediate medical attention
Symptoms: Irritation of eyes, skin, respiratory tract; headaches, dizziness, nausea may occur with high exposure
Suitable Extinguishing Media: Dry chemical, carbon dioxide, alcohol-resistant foam
Unsuitable Extinguishing Media: Water jet (may spread fire)
Special Hazards: Releases toxic nitrogen oxides and carbon monoxide upon combustion
Special Protective Equipment: Firefighters require self-contained breathing apparatus and protective clothing
Firefighting Instructions: Evacuate hazard area, contain run-off to prevent environmental contamination, cool exposed containers with water spray
Personal Precautions: Eliminate ignition sources, ventilate area, wear chemical-resistant gloves, goggles, and respirator
Spill Cleanup Methods: Absorb with inert material (sand, vermiculite), collect in suitable container for disposal, flush area with water after removal
Environmental Precautions: Prevent entry into drains, waterways, or soil, alert local authorities if contamination occurs
Methods for Containment: Stop leak if safe, dike area to avoid spreading
Emergency Procedures: Follow chemical spill emergency protocol, evacuate unnecessary personnel
Safe Handling: Avoid inhaling vapors, use only in a chemical fume hood, keep container tightly closed when not in use
Avoidance: Static discharge, open flames, smoking, incompatible substances (oxidizers, acids)
Safe Storage Conditions: Store in a designated flammable liquid area, away from direct sunlight, in a cool, dry, well-ventilated and tightly-sealed container
Incompatibilities: Strong oxidizing agents, strong acids, halogenated compounds
Transfer Guidelines: Use non-sparking tools, bond and ground transfer containers to avoid static buildup
Exposure Limits: No established OSHA or ACGIH limits; minimize exposure as much as possible
Engineering Controls: Chemical fume hood, local exhaust ventilation
Personal Protective Equipment (PPE): Nitrile or neoprene gloves, chemical splash goggles, flame-resistant lab coat, suitable respirator if extraction ventilation inadequate
Hygiene Measures: Wash hands thoroughly after handling, do not eat or drink in work area, remove contaminated clothing immediately
Environmental Exposure Controls: Minimize release, use closed systems where possible
Appearance: Colorless to pale-yellow liquid
Odor: Aromatic, amine-like
Molecular Weight: 81.12 g/mol
Melting Point: -55°C
Boiling Point: 126–128°C
Flash Point: 22°C (closed cup)
Flammability: Highly flammable liquid and vapor
Vapor Pressure: 11 mm Hg @ 25°C
Solubility: Soluble in organic solvents, low solubility in water
Partition Coefficient (Log Kow): 0.48
Auto-ignition Temperature: Not determined
Viscosity: Not determined
Chemical Stability: Stable under standard temperature & pressure, away from light and air
Conditions to Avoid: Heat, open flame, ignition sources, incompatible materials
Materials to Avoid: Strong oxidizers such as peroxides, nitric acid, halogens
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, nitrogen oxides
Hazardous Reactions: May polymerize at elevated temperatures or upon prolonged exposure to air
Acute Toxicity: Oral LD50 (rat) >300 mg/kg (limited data), inhalation and dermal toxicity not fully evaluated
Skin/Eye Irritation: Causes moderate to severe irritation, redness, and pain
Respiratory Effects: May cause coughing, dizziness, shortness of breath with high exposure
Chronic Effects: Repeated exposure may cause damage to liver or kidneys based on pyrrole studies
Sensitization: No data on skin sensitization
Carcinogenicity: Not classified as carcinogen by NTP, IARC, or OSHA
Mutagenicity: Limited mutagenicity data, handle as a potential mutagen
Reproductive Toxicity: Not established
Aquatic Toxicity: Harmful to aquatic organisms in high concentrations, avoid water contamination
Persistence and Degradability: Not readily biodegradable, may persist in the environment
Bioaccumulation: Low bioaccumulation potential (low Log Kow)
Soil Mobility: Moderate mobility in soil, possible evaporation
Other Ecological Hazards: Large spills may deplete oxygen in aquatic environments, potentially toxic to bacteria and algae
Waste Treatment Methods: Dispose in accordance with local, regional, and national regulations as a hazardous chemical waste
Contaminated Packaging: Clean thoroughly or dispose as hazardous waste
Recommended Disposal: Incineration at licensed chemical waste facility
Precautions: Do not pour down drains or mix with non-compatible wastes, label and store waste securely until disposal
Legal Requirements: Record disposal method and recipient as per chemical safety rules
UN Number: UN3271
UN Proper Shipping Name: Methylpyrrole, N-, liquid
Transport Hazard Class: 3 (Flammable Liquid)
Packing Group: II
Environmental Hazards: Avoid release to waterways
Special Precautions: Follow hazardous chemical transport regulations, use certified containers, emergency response info must accompany shipment, mark as dangerous goods
Labelling: GHS, OSHA HazCom, flammable liquid labeling requirements
Inventories: Listed in TSCA (US), EINECS (EU), ENCS (Japan)
SARA Title III: Not subject to Section 302, 304, 313 reporting
OSHA: Covered under hazardous chemical requirements
REACH (EU): Subject to applicable registration and chemical management requirements
Other Regulations: Manufacture, sale, import or use may require permits under local hazardous substance control laws
