Thiophene-2-Ethylamine Material Safety Data Sheet

Identification

Product Name: Thiophene-2-Ethylamine
Other Names: 2-(2-Thienyl)ethylamine
Chemical Formula: C6H9NS
CAS Number: 18046-65-6
Recommended Use: Laboratory chemical, synthesis intermediate
Supplier Details: Information relevant to manufacturer or distributor typically kept on-hand, including address, contact number, and emergency contact number for chemical incidents or spill response events.

Hazard Identification

Hazard Classification: Acute toxicity (Oral, Dermal, Inhalation), Skin irritation, Eye irritation
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes skin and eye irritation, may cause respiratory irritation
Pictograms: Exclamation mark
Precautionary Statements: Avoid breathing dust, fume, gas, mist, vapors or spray; wash skin thoroughly after handling; use only outdoors or in a well-ventilated area; wear protective gloves, protective clothing, and eye/face protection.

Composition / Information on Ingredients

Chemical Name: Thiophene-2-Ethylamine
Concentration: 98% or higher typically present in pure form
CAS Number: 18046-65-6

First Aid Measures

General Notes: Seek medical attention if symptoms develop or persist. Remove source of exposure.
Inhalation: Move person to fresh air; keep at rest; seek medical attention if breathing becomes difficult.
Skin Contact: Remove contaminated clothing; flush skin with plenty of water and soap; seek medical attention for any irritation.
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do; continue rinsing and seek medical advice.
Ingestion: Rinse mouth, do not induce vomiting, seek immediate medical advice.

Fire-Fighting Measures

Suitable Extinguishing Media: Carbon dioxide, foam, dry chemical powder, water spray
Specific Hazards: Hazardous combustion products include oxides of carbon, nitrogen, and sulfur; toxic fumes may form under fire conditions
Protective Equipment for Firefighters: Wear self-contained breathing apparatus and full protective gear; keep containers cool by spraying with water.

Accidental Release Measures

Personal Precautions: Evacuate area and ensure adequate ventilation; avoid breathing vapors, dust, or mist; avoid contact with skin or eyes.
Environmental Precautions: Prevent product from entering drains, surface water, or soil.
Methods for Clean-Up: Absorb with inert material (like sand or vermiculite), collect and place in suitable containers for disposal; ventilate area and wash spill site after material pickup is complete.

Handling and Storage

Precautions for Safe Handling: Handle in well-ventilated area; wear appropriate protective equipment; wash hands after handling.
Conditions for Safe Storage: Store in tightly closed containers in a cool, dry, and well-ventilated location away from incompatible substances such as strong oxidizers and acids; keep out of direct sunlight and heat sources.

Exposure Controls and Personal Protection

Engineering Controls: Use general or local exhaust ventilation to keep airborne concentrations below recommended exposure limits; use closed systems where possible.
Eye and Face Protection: Safety goggles or face shield
Skin Protection: Chemical-resistant gloves, long-sleeved clothing
Respiratory Protection: NIOSH/MSHA-approved respirator if exposure limit may be exceeded or ventilation insufficient
Hygiene Measures: Avoid contact with eyes and skin; wash thoroughly after use; do not eat, drink, or smoke while handling.

Physical and Chemical Properties

Appearance: Colorless to pale yellow liquid
Odor: Characteristic, may be unpleasant
Odor Threshold: Not determined
pH: Not determined
Melting Point: Typically below room temperature
Boiling Point: 90-100°C at 0.5 mmHg (substantial range depending on conditions)
Flash Point: Approx. 93°C (estimated)
Evaporation Rate: Not determined
Flammability (solid, gas): Not applicable
Vapor Pressure: Not available
Vapor Density: Not available
Solubility: Limited solubility in water; soluble in organic solvents
Relative Density: Approximately 1.1-1.2 g/cm³
Partition Coefficient (n-octanol/water): Not available
Auto-Ignition Temperature: Not determined
Decomposition Temperature: Not determined
Viscosity: Not determined

Stability and Reactivity

Chemical Stability: Typically stable when stored according to recommendations
Reactivity: Not expected to be reactive under recommended transport or storage conditions
Possibility of Hazardous Reactions: Can react with strong oxidizers, acids, acid chlorides
Conditions to Avoid: Excessive heat, open flames, sparks, direct sunlight, incompatible materials
Incompatible Materials: Oxidizing agents, strong acids
Hazardous Decomposition Products: Carbon dioxide, carbon monoxide, nitrogen oxides, sulfur oxides, and toxic fumes

Toxicological Information

Routes of Exposure: Eyes, skin, inhalation, ingestion
Acute Toxicity: Harmful if swallowed; can cause skin and eye irritation and respiratory tract irritation
Chronic Effects: Long-term exposure effects not well documented; laboratory studies may note sensitization with repeated handling
Symptoms of Exposure: Redness, irritation, nausea, dizziness, headache
LD50/LC50: Exact dose values not established, but similar thiophene compounds show moderate acute toxicity in animal studies
Carcinogenicity: No data suggesting carcinogenic potential for this compound
Mutagenicity/Teratogenicity/Reproductive Toxicity: Data lacking; handle as potentially hazardous.

Ecological Information

Toxicity: May be harmful to aquatic life; avoid release to environment
Persistence and Degradability: Data unavailable, but heterocyclic amines may degrade slowly under environmental conditions
Bioaccumulative Potential: Information not available
Mobility in Soil: Likely to exhibit moderate mobility; avoid soil contamination
Other Adverse Effects: No further relevant information known.

Disposal Considerations

Waste Treatment Methods: Dispose of contents/container through a licensed hazardous waste disposal contractor; follow all federal, state, and local regulations
Contaminated Packaging: Dispose as unused product unless thoroughly cleaned
Precautions: Do not discharge to drains or the environment; avoid contact with water sources.

Transport Information

UN Number: Not assigned for small-scale laboratory quantities
Proper Shipping Name: Organic liquid, n.o.s. (not otherwise specified), applies when shipped in bulk
Transport Hazard Class: Not regulated in small quantities, check with carrier for bulk shipping
Packing Group: May require evaluation based on specific transport; not generally classified
Special Precautions: Use secure packaging; prevent container damage; label packages based on regulatory requirements.

Regulatory Information

OSHA Status: Not specifically listed; general workplace safety standards apply
TSCA Inventory: Check for inclusion; most lab chemicals need to be on TSCA for legal importation into the US
SARA Title III: Not listed as hazardous under Section 313 or Section 302
California Proposition 65: Compound not listed
Other Regulations: Conform to country, state, and local environmental, chemical safety, and hazard communication regulations.