Product Name: 1-Ethyl-1H-Pyrrole
Synonyms: 1-Ethylpyrrole, N-Ethylpyrrole
CAS Number: 766-99-4
Recommended Use: Laboratory and industrial chemical research
Supplier Information: Chemical suppliers and distributors contact details supplied on shipment paperwork
Emergency Contact: Local emergency services, supplier emergency contact provided on purchase documentation
GHS Classification: Flammable liquid and vapor (Category 3), Harmful if swallowed (Category 4), Causes skin and eye irritation
Signal Word: Warning
Hazard Statements: May cause severe eye irritation, possible respiratory irritation, skin dryness or cracking, harmful if inhaled or ingested, highly flammable
Pictograms: Flame, Exclamation mark
Precautionary Statements: Avoid breathing vapors, keep away from ignition sources, use in well-ventilated areas, wear protective equipment
Chemical Identity: 1-Ethyl-1H-Pyrrole
Concentration: 98-100% by weight
Impurities: Trace tars or solvents may be present based on manufacturing batch
EC Number: 212-177-1
Inhalation: Move person to fresh air, support breathing as needed, seek medical help if symptoms persist
Skin Contact: Wash thoroughly with plenty of soap and water, remove contaminated clothing, see physician for persistent irritation
Eye Contact: Flush eyes gently with water for at least 15 minutes, lift upper and lower eyelids occasionally, seek immediate medical attention
Ingestion: Rinse mouth, do not induce vomiting, drink water if conscious, get prompt medical attention
Symptoms & Effects: Drowsiness, dizziness, irritation to mucous membranes, nausea, risk of aspiration pneumonia from ingestion
Suitable Extinguishing Media: Dry chemical, foam, carbon dioxide, use water mist to cool containers
Unsuitable Media: Direct water jet promotes spattering and vapor spread
Special Hazards: Vapors can form explosive mixtures with air, combustion may release nitrogen oxides and toxic fumes
Protective Equipment for Firefighters: Full protective clothing, self-contained breathing apparatus, use equipment designed for flammable liquid incidents
Advice: Evacuate area, stay upwind, cool fire-exposed containers
Personal Precautions: Evacuate personnel, avoid inhalation of vapor, shut off sources of ignition, wear gloves and goggles
Environmental Precautions: Prevent spill from entering drains, surface water or soil
Methods for Containment: Absorb with non-combustible material such as sand, collect residue, use spark-proof equipment
Clean-Up Procedures: Sweep or shovel material carefully, ventilate area, dispose of waste according to local, state, and federal regulations
Handling: Use ground and bonding for container transfer, avoid splashing, do not eat or smoke in work area, open containers slowly to release pressure
Storage: Store in tightly closed containers, keep in cool, dry, well-ventilated place away from incompatible materials like strong oxidizers and acids, avoid exposure to sunlight and high temperatures
Exposure Limits: No OSHA or ACGIH limits set specifically for 1-Ethyl-1H-Pyrrole, control exposure based on irritant properties
Engineering Controls: Local exhaust ventilation, closed systems for transfer and handling, explosion-proof equipment
Personal Protective Equipment: Nitrile gloves, chemical splash goggles, flame-resistant lab coats, approved respirator if vapor exceeds safe levels
Hygiene Measures: Wash hands after handling, remove soiled clothing, eye wash and safety shower in work zone
Appearance: Colorless to pale yellow liquid
Odor: Mild, amine-like
Melting Point: -68°C
Boiling Point: 146-148°C
Density: 0.947 g/cm³ at 25°C
Vapor Pressure: 3.5 mmHg at 25°C
Solubility: Slightly soluble in water, miscible in most organic solvents
Flash Point: 32°C (closed cup)
Auto-ignition Temperature: 440°C
Partition Coefficient (log Kow): Estimated 1.7
Chemical Stability: Stable under standard storage conditions, sensitive to light and air, gradual darkening may occur
Reactivity: May react with strong acids, bases, and oxidizing agents causing violent reactions
Hazardous Decomposition Products: Burns to release carbon monoxide, carbon dioxide, nitrogen oxides, and corrosive fumes
Conditions to Avoid: Heat, flames, ignition sources, long-term air exposure
Acute Toxicity: Oral LD50 (rat) >2000 mg/kg, skin LD50 (rabbit) not well documented
Inhalation: Headache, confusion, nausea possible with high vapor exposure
Skin Irritation: Causes mild to moderate irritation on repeated contact
Eye Irritation: Causes strong irritation, pain, redness
Chronic Effects: Prolonged or repeated exposure may result in dermatitis, no evidence for mutagenicity or carcinogenicity documented for this compound
Sensitization: No reliable data suggests skin or respiratory sensitization in typical laboratory exposures
Aquatic Toxicity: No detailed studies, likely moderate toxicity to fish and aquatic invertebrates based on structure
Bioaccumulation Potential: Low to moderate expected due to estimated partition coefficient
Mobility in Soil: Readily mobile in soils, may contaminate groundwater if not contained
Degradability: Expected to degrade slowly by microbial action
Other Information: Avoid uncontrolled release to water systems, may cause oxygen depletion in aquatic environments
Waste Treatment Methods: Collect waste in sealed, labeled containers, dispose through licensed chemical waste contractor
Incineration: Suitable for flammable/organic solvent waste with prior regulatory consultation
Contaminated Packaging: Triple rinse containers before recycling or disposal, follow local hazardous waste rules
Do Not Dispose: Down the drain, in regular trash, or by evaporation in open air
UN Number: 1993
Proper Shipping Name: Flammable Liquid, N.O.S. (contains 1-Ethyl-1H-Pyrrole)
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: III
Environmental Hazards: None identified under normal transport
Transport Precautions: Keep container upright, tightly sealed, away from oxidizers, follow Emergency Response Guidebook recommendations for fires and spills in transit
OSHA: Not specifically listed as hazardous, general chemical hygiene practices apply
SARA Title III: Not subject to reporting under Sections 302, 304, or 313
TSCA: Listed in United States Toxic Substances Control Act Inventory
REACH (EU): Registration and risk assessment may be required for import or manufacture over threshold volumes
WHMIS (Canada): Class B2 (Flammable Liquid) and D2B (Toxic Material causing other effects), requires workplace labeling
Other National Regulations: Local, state, and country-specific restrictions may apply to storage, use, or disposal in line with general chemical hazards law; always check local requirements before use
