Product Name: N-Ethylpyrrole
Chemical Family: Heterocyclic organic compound
Synonyms: 1-Ethylpyrrole, Pyrrole, N-ethyl-
CAS Number: 140-55-4
Recommended Use: Reagent, intermediate for organic synthesis, specialty solvent
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Classification: Flammable liquid, Acute toxicity (oral, inhalation, dermal), Eye irritation
GHS Label Elements: Flame, Exclamation Mark
Warning: Highly flammable, May irritate skin, eyes, and respiratory tract, Harmful on ingestion and inhalation, Vapors may form explosive mixtures with air
Potential Health Effects: Shortness of breath, headache, dizziness, skin redness or irritation on contact, stomach upset if swallowed, cough or throat irritation from vapors
Environmental Hazards: May be harmful to aquatic life; spills threaten water sources and soil
Physical Hazards: Vapors ignite easily; static discharge risk during handling
Chemical Name: N-Ethylpyrrole
CAS Number: 140-55-4
Concentration: >99%
Impurities: Trace pyrrole, residual solvents
Additives: None
General: Move affected individual to fresh air or safe area; remove contaminated clothing
Inhalation: Remove person to fresh air, loosen tight clothing, seek medical attention if symptoms persist
Skin Contact: Wash skin thoroughly with lots of water and soap, remove any contaminated clothing, seek medical advice for persistent irritation
Eye Contact: Rinse thoroughly with water for at least 15 minutes, lift eyelids; get medical help if discomfort continues
Ingestion: Rinse mouth, do not induce vomiting, never give anything by mouth to an unconscious person; contact a poison center or doctor right away
Important Symptoms: Cough, dizziness, nausea, skin or eye redness
Special Notes for Doctors: Treat symptomatically; monitor for respiratory complications
Suitable Extinguishing Media: Dry chemical powder, carbon dioxide, foam, alcohol-resistant foam
Unsuitable Media: Water jet
Hazards from Combustion: Toxic and irritating gases (nitrogen oxides, carbon monoxide, carbon dioxide)
Protective Equipment: Full protective gear and self-contained breathing apparatus
Firefighting Procedures: Cool containers with water spray if exposed to fire, keep runoff out of sewers and waterways
Unusual Fire Hazards: Vapors travel and ignite at distant source, containers may rupture under fire conditions
Personal Precautions: Evacuate nonessential personnel, ventilate area, eliminate ignition sources, wear chemical splash goggles, gloves, and protective clothing
Environmental Precautions: Prevent from entering drains and waterways, contain soil runoff
Containment Methods: Absorb spill onto inert material (sand, earth), collect residue into suitable waste container, keep for disposal
Cleanup Methods: Wash contaminated area with water and detergent, ventilate area thoroughly, dispose waste in accordance with regulations
Precautions for Safe Handling: Work in well-ventilated areas, avoid inhalation, prevent skin and eye contact, ground and bond containers and equipment, keep away from sources of ignition, use non-sparking tools, prohibit smoking
Storage Conditions: Store in tightly closed containers under inert gas, in a cool, dry, well-ventilated location, away from heat or sunlight, segregate from strong oxidizers and acids, label clearly, inspect regularly for leaks, avoid storing with flammables and corrosives
Exposure Limits: No established occupational exposure limits
Engineering Controls: Local exhaust ventilation, eye wash stations, emergency showers
Personal Protection: Chemical-resistant gloves (nitrile or PVC), safety goggles, long-sleeved clothing, face shield for splash risk
Respiratory Protection: Certified air-purifying respirator during vapor or aerosol exposure
Hygiene Measures: Wash hands and exposed skin after handling, avoid eating and drinking in work areas, change contaminated clothes right away
Appearance: Clear to slightly yellow liquid
Odor: Sweet, characteristic amine-like
Odor Threshold: No data available
pH: Not applicable (non-aqueous)
Melting Point: -70 °C
Boiling Point: 148-150 °C
Flash Point: 38 °C (Closed cup)
Evaporation Rate: No data available
Flammability: Highly flammable
Upper/Lower Explosive Limits: Not precisely defined
Vapor Pressure: Moderate at room temperature
Vapor Density: Heavier than air
Relative Density: 0.97 g/cm³ at 25 °C
Solubility: Miscible with most organic solvents, low solubility in water
Partition Coefficient: Log Pow approx. 1.4
Auto-Ignition Temperature: Approximately 400 °C
Decomposition Temperature: Not specified
Viscosity: Not determined
Chemical Stability: Stable under standard conditions if kept away from light and air
Incompatible Materials: Strong oxidizers, acids, alkalis, halogens
Hazardous Decomposition: Carbon oxides, nitrogen oxides, toxic organic fumes
Possibility of Hazardous Reactions: Polymerizes on extended contact with air or acids
Conditions to Avoid: Heat, flames, sparks, exposure to moisture or air, contamination with oxidizing agents
Acute Toxicity: Oral LD50 (rat): estimated 650 mg/kg; dermal and inhalation toxicity data limited
Skin Corrosion/Irritation: Causes skin irritation
Eye Damage/Irritation: Severe eye irritation on direct contact
Respiratory Irritation: Vapors cause coughing, shortness of breath, and throat discomfort
Chronic Effects: Repeated exposure may affect central nervous system, liver, and kidneys; skin sensitization possible
Carcinogenicity: Not classified as carcinogen by IARC, NTP, or OSHA
Mutagenicity: No data available
Reproductive Toxicity: No conclusive data
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Symptoms: Redness, headache, nausea, dizziness, irritation at high concentrations
Toxicity to Aquatic Life: Toxic to fish and aquatic invertebrates at low levels
Persistence and Degradability: Readily biodegradable but can bioaccumulate
Bioaccumulation Potential: Moderate (log Pow 1.4)
Mobility in Soil: Moderate; may contaminate groundwater if spilled
Other Adverse Effects: Spills threaten aquatic habitat, disrupt microorganisms, product reacts in environment to form hazardous byproducts
Avoid Release: Keep out of sewers, watercourses, and soil
Disposal Method: Incinerate in chemical incinerator with afterburner and scrubber, collect and dispose of via licensed hazardous chemical waste contractor
Contaminated Packaging: Rinse thoroughly, treat as hazardous waste, do not reuse containers
Special Precautions: Precaution during disposal to avoid vapor exposure, follow federal, state, and local hazardous waste regulations
UN Number: 1993
UN Proper Shipping Name: Flammable liquid, n.o.s. (contains N-Ethylpyrrole)
Transport Hazard Class: 3 (Flammable Liquid)
Packing Group: II
Label Requirements: Flammable Liquid
Special Transport Notes: Avoid temperature extremes during transit, secure upright, comply with regulations for hazardous materials, emergency procedures listed on shipping paperwork
OSHA: Flammable liquid under OSHA Hazard Communication Standard
TSCA: Listed in US Toxic Substances Control Act Inventory
SARA Title III: Not listed as an extremely hazardous substance, not subject to section 313 reporting
California Prop 65: Not listed
EINECS: 205-414-5
WHMIS: Class B2 Flammable liquid; D2B, toxic material causing other toxic effects
Other Regulations: Always check local requirements for use, transport, and disposal restrictions
