Product Name: 3-Oxythiophene
Chemical Formula: C4H4OS
Synonyms: 3-Thienol, Thiophen-3-ol
CAS Number: 4984-72-7
Supplier: Local chemical manufacturers, available through most laboratory catalogues
Use: Intermediate for synthesis in organic chemistry, research applications
Contact Details (Supplier): Embedded with other business documents; printed on packaging
Emergency Phone: Local fire department or regional poison control
Classification: Flammable liquid, skin irritant, acute toxic (oral / inhalation), harmful to aquatic life
Pictograms: Flame, exclamation mark, aquatic toxicity symbol
Signal Word: Warning
Hazard Statements: Flammable liquid and vapor, causes skin and eye irritation, may cause respiratory discomfort, harmful if swallowed, toxic to aquatic organisms
Precautionary Statements: Avoid open flames or heat sources near liquid, wear goggles and gloves, avoid breathing vapor, keep container closed tightly, keep away from drains and waterways
Chemical Name: 3-Oxythiophene
Concentration: >98%
CAS Number: 4984-72-7
Impurities: Trace solvents from manufacture (less than 0.5% by volume), potential for oxidation products
Other Ingredients: No stabilizers or common excipients listed on sourced batches
Inhalation: Move person into fresh air, provide oxygen if breathing difficulty arises, seek medical attention for prolonged effects
Skin Contact: Rinse area with soap and running water (minimum 15 minutes), remove contaminated clothing, consult medical if redness or irritation persists
Eye Contact: Rinse with plenty of water (minimum 15 minutes), remove contact lenses if possible, consult eye specialist for persistent discomfort
Ingestion: Wash mouth, do not induce vomiting, drink moderate volumes of clean water, call poison control and inform about the chemical identity
Most Important Symptoms: Irritation, dizziness, possible headache, nausea, allergic reaction in sensitive individuals
Suitable Extinguishing Media: Dry chemical, foam, CO2, sand
Unsuitable Extinguishing Media: Direct water stream could spread burning liquid
Specific Hazards: Vapors heavier than air; accumulation in low places, thermal decomposition produces toxic gases including sulfur oxides and carbon monoxide
Protective Equipment for Firefighters: Full protective equipment and self-contained breathing apparatus
Other Information: Move containers from fire if possible, cool exposed containers with water spray, evacuate area if fumes concentrated
Personal Precautions: Remove sources of ignition, ventilate area, avoid skin and eye contact
Spill Containment: Use non-combustible absorbent (sand, earth), prevent entry into drains
Cleanup: Shovel residue into suitable waste container, wash affected area with soapy water, label container for hazardous disposal
Environmental Precautions: Notify authorities if large spills reach waterways, keep away from soil and vegetation
Protective Wear: Nitrile gloves, goggles, supplied air respirator in highly contaminated settings
Handling: Use only in ventilated spaces, ground containers during transfer, keep away from sources of static electricity and fire
Hygiene Measures: Wash hands thoroughly after use, prohibit eating/drinking in handling areas
Storage: Store in cool, well-ventilated area, in sealed chemical-resistant containers, away from heat, direct sunlight, oxidizers, acids
Incompatibility: Avoid storage with strong oxidizing agents or bases, keep apart from food and feedstuffs
Shelf Life: 12 months if stored under recommended conditions
Exposure Limits: No occupational exposure limit established; minimize exposure as a precaution
Engineering Controls: Work in chemical fume hood or with local exhaust ventilation, use explosion-proof equipment
Personal Protection:
Respiratory: NIOSH-approved organic vapor cartridge masks under normal conditions, supplied air respirator for large spills
Skin: Impermeable gloves (nitrile, neoprene), lab coat
Eye: Chemical splash goggles, face shield if risk of splashing
Other: Closed shoes, avoid direct contact with skin and eyes, emergency wash station nearby
Appearance: Colorless or pale yellow liquid
Odor: Sharp, sulfurous aroma
Odor Threshold: Detectable at low ppm
pH: Not applicable (neutral in water)
Melting Point: ~-39°C
Boiling Point: ~173°C
Flash Point: ~54°C (closed cup)
Flammability: Flammable liquid
Vapor Pressure: 3 mmHg at 25°C
Solubility: Slightly soluble in water, soluble in alcohol, ether, acetone
Partition Coefficient (Log Kow): Estimated 1.4
Auto-ignition Temperature: ~390°C
Decomposition Temperature: Not precisely established, above 190°C decomposition likely
Viscosity: Low, similar to other simple aromatic thiols
Chemical Stability: Stable at room temperature if kept away from moisture
Reactivity: Oxidizes in air over time, may react with strong bases and oxidizers
Incompatible Materials: Strong acids, oxidizers (e.g., nitric acid, peroxides), strong bases
Hazardous Decomposition: Sulfur oxides, carbon monoxide, carbon dioxide, other unidentified organic compounds on combustion
Polymerization: Not expected under normal conditions
Acute Toxicity (Oral): Data limited, animal studies suggest moderate oral toxicity
Skin: Irritant, possible sensitization with prolonged contact
Eyes: Causes irritation, possible reversible injury if not rinsed
Inhalation: Respiratory tract irritation, possible headache, dizziness at high concentrations
Chronic Effects: No published long-term studies, repeated exposure may risk dermatitis
Carcinogenicity: No IARC or NTP classification
Mutagenicity and Reproductive Effects: No data available
Ecotoxicity: Harmful to aquatic organisms, risk of long-term hazards in aquatic environment
Persistence and Degradability: Expected to degrade but not rapidly; aromatic structure slows microbial breakdown
Bioaccumulation: Log Kow suggests moderate potential, actual risk unknown
Mobility in Soil: Limited water solubility implies increased affinity for soils; volatilization may occur on surfaces
Other Adverse Effects: Spilled liquid could damage vegetation, should not enter sewer or surface water
Waste Treatment: Collect waste in leak-proof, labeled containers, incinerate in licensed chemical waste facility
Disposal of Containers: Triple rinse hollow containers, pierce to prevent reuse, dispose with hazardous waste
Other Disposal: Prevent material from reaching surface water, follow local hazardous waste regulations, consult environmental authorities for large-scale disposal
UN Number: 1993
Proper Shipping Name: Flammable liquid, n.o.s. (includes 3-oxythiophene)
Transport Hazard Class: 3 (Flammable liquids)
Packing Group: III
Marine Pollutant: Yes
Special Precautions: Use certified transport containers, keep upright, attach hazard labels
Labelling: Required pictograms for flammable liquid, irritant
Inventory Status: Listed on most public chemical inventories (US TSCA, EU REACH registered intermediates)
SARA Title III: Not specifically listed but meets reporting requirements for hazardous chemicals (Section 311/312)
Canadian WHMIS Classification: B2 (Flammable Liquid), D2B (Toxic Material Causing Other Effects)
Other: Not considered controlled drug, not on CWC or PIC lists, subject to workplace-specific hazard communication requirements
