Product Name: 4-Bromobenzo[b]thiophene
Chemical Formula: C8H5BrS
CAS Number: 50261-65-9
Synonyms: 4-Bromo-1-benzothiophene
Recommended Use: Chemical synthesis, laboratory reagent
Supplier Details: Name, address, phone number, and emergency contact info for the manufacturer or distributor
Emergency Phone: Contact number for chemical emergencies
GHS Classification: Irritant to skin and eyes, possible respiratory irritant, may cause long-term environmental harm
Hazard Statements: Causes eye irritation, causes skin irritation, harmful if inhaled, toxic to aquatic organisms
Pictograms: Exclamation mark, environment
Precautionary Statements: Avoid breathing dust or fumes, use protective equipment, wash thoroughly after handling, prevent release to the environment
Signal Word: Warning
Target Organs: Eyes, skin, respiratory tract, aquatic life
Chemical Name: 4-Bromobenzo[b]thiophene
Chemical Formula: C8H5BrS
CAS Number: 50261-65-9
Concentration: 98-100% pure
Impurities: Minor organic and inorganic byproducts, to be reported individually if above 0.1%
Inhalation: Remove from exposure area to fresh air, seek medical attention if discomfort persists
Skin Contact: Wash affected area with soap and water for at least 15 minutes, remove contaminated clothing, get medical help for persistent irritation
Eye Contact: Flush eyes with plenty of water for at least 15 minutes while holding eyelids open, seek immediate medical advice
Ingestion: Rinse mouth thoroughly, do not induce vomiting, seek medical guidance promptly
Symptoms: Redness, irritation, burning sensation, coughing, shortness of breath
Suitable Extinguishing Media: Dry chemical, carbon dioxide, water spray, foam
Hazards from Combustion: Emits toxic fumes of bromine, sulfur dioxide, carbon monoxide, carbon dioxide
Protective Equipment: Firefighters should wear self-contained breathing apparatus and full protective gear
Firefighting Instructions: Use water spray to cool containers, keep runoff out of drains, approach from upwind to avoid hazardous vapors
Spill Procedures: Ventilate the area, avoid dust formation, collect solid in suitable container using HEPA vacuum or wet methods
Personal Protection: Use gloves, goggles, lab coat, respirator if needed
Environmental Precautions: Prevent runoff into drains and waterways, notify appropriate authorities if environmental contamination occurs
Decontamination: Wipe down surfaces with appropriate cleaning solution, dispose of contaminated materials as hazardous waste
Precautions for Safe Handling: Use only in well-ventilated areas, keep away from heat and sources of ignition, avoid contact with skin and eyes, do not breathe dust or vapor
Storage Conditions: Store in a tightly closed container, in a cool, dry, and well-ventilated place, protect from moisture and incompatible substances
Incompatible Materials: Strong oxidizers, acids, bases
Transfers: Use proper grounding to avoid static discharge, use dedicated tools and containers
Exposure Limits: No specific occupational exposure limits established, use as low as reasonably achievable (ALARA) principle
Engineering Controls: Fume hood ventilation, local exhaust systems, enclosed process equipment
Personal Protection: Chemical-resistant gloves (nitrile or neoprene), safety goggles, lab coat, dust mask or suitable respirator if airborne concentrations are high
Hygiene Measures: Wash hands and face after handling, do not eat or drink in work area, remove contaminated clothing before leaving laboratory
Appearance: Light yellow to brown crystalline powder
Odor: Slight aromatic odor
Molecular Weight: 213.10 g/mol
Melting Point: 59–62 °C
Boiling Point: 310 °C
Solubility: Insoluble in water, soluble in organic solvents such as ether, chloroform
Vapor Pressure: Low at room temperature
Density: 1.64 g/cm³
Partition Coefficient (log P): Estimated 3.9–4.2
Chemical Stability: Stable under recommended storage conditions
Reactivity: May react with strong oxidizers, acids, alkalis
Hazardous Reactions: Decomposition can produce toxic or irritating gases including bromine and sulfur oxides
Conditions to Avoid: Excessive heat, sparks, open flames, incompatible materials
Decomposition Products: Hydrogen bromide, sulfur dioxide, carbon oxides
Acute Toxicity: Limited data available, expected moderate oral and dermal toxicity
Skin Corrosion/Irritation: Causes irritation with possible redness or rash
Eye Damage/Irritation: Causes moderate to severe eye irritation
Respiratory Effects: Inhalation may cause coughing, sore throat, shortness of breath
Sensitization: No data indicating skin or respiratory sensitization
Chronic Effects: Long-term effects not well documented
Carcinogenicity: Not classified as carcinogenic by IARC, ACGIH, NTP, or OSHA up to data available
Mutagenicity: Insufficient data
Ecotoxicity: Harmful to aquatic life, may cause long-term adverse effects
Persistence and Degradability: Not readily biodegradable, persistent in soil and water environments
Mobility in Soil: Low mobility, likely to adsorb to soil particles
Bioaccumulative Potential: High potential due to hydrophobic nature and log P values above 3
Other Effects: Prevent environmental release, report accidental large discharges to proper authorities
Disposal Methods: Dispose of as hazardous chemical waste in accordance with local, regional, national, and international regulations
Contaminated Packaging: Triple rinse container, offer for recycling or dispose of in approved waste facility
Precautions: Do not mix with household garbage, do not release into sewer systems or waterways
UN Number: Not assigned for small volumes, treat as regulated chemical for larger shipments
UN Proper Shipping Name: Environmentally hazardous substance, solid, n.o.s. (4-Bromobenzo[b]thiophene)
Transport Hazard Class: 9 (miscellaneous dangerous substances)
Packing Group: III
Environmental Hazards: Yes, contains substance harmful to aquatic environment
Transport Precautions: Keep away from foodstuffs and animal feeds, ensure container integrity, follow applicable DOT, IMDG, IATA regulations
OSHA Status: Not specifically regulated, handle as hazardous chemical
TSCA Inventory: Included if listed in manufacturer supply
WHMIS Classification: D2B (toxic material causing other toxic effects)
SARA Title III: Not a listed extremely hazardous substance, not subject to specific reporting if below threshold quantities
REACH Registration: Manufacturer or importer must ensure registration compliance if applicable
Other Regulations: Compliance with country-specific chemical control laws, hazard communication standards, and waste management laws mandatory for all handlers and users
