Product Name: 1-(2,5-Dichloro-3-Thienyl)Ethan-1-One
Chemical Formula: C6H4Cl2OS
Synonyms: Ethanone, 2,5-Dichloro-3-thienyl
CAS Number: 121474-98-2
Recommended Use: Raw chemical for research, synthesis of specialty organics
Supplier: Specialty chemical distributor or laboratory supplier contact details
Emergency Phone: Available local chemical safety emergency or supplier emergency number
GHS Classification: Acute Toxicity (Oral), Eye Irritation, Skin Irritation, Specific Target Organ Toxicity (Single Exposure)
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes skin and serious eye irritation, toxic to aquatic life, may cause respiratory irritation and drowsiness
Pictograms: Exclamation mark, environment hazards
Precautionary Statements: Avoid inhalation, prevent release to environment, wear protective gloves and eyewear, wash hands after use, keep out of reach of untrained individuals
Chemical Name: 1-(2,5-Dichloro-3-Thienyl)Ethan-1-One
Concentration: 98 - 100%
Impurities: Trace related organics (under 2%), trace solvents possible depending on supplier
Other Components: No classified adjuvants, no formulation additives
Inhalation: Move person to fresh air promptly, keep breathing normal, seek medical attention if cough, headache, or dizziness show
Skin Contact: Wash with plenty of lukewarm water, remove contaminated clothing, wash again if irritation lingers, get medical help for blisters or broken skin
Eye Contact: Rinse with water for at least 15 minutes, pull eyelids apart occasionally, do not let affected person rub eyes, call poison control or see a physician if irritation cannot be relieved
Ingestion: Rinse mouth with water, do not induce vomiting, seek immediate medical assistance, present product label or container if available to responders
Most Important Symptoms: Stinging, redness, severe headache possible with inhalation or eye exposure, stomach upset and vomiting after ingestion
Suitable Extinguishing Media: Water spray, dry chemical, foam, carbon dioxide
Unsuitable Extinguishing Media: Strong direct water jets may spread spilled material
Hazards: Decomposes on burning to release toxic and corrosive fumes, hydrogen chloride, sulfur oxides
Protective Actions: Firefighters use self-contained breathing apparatus, full turnout gear, cool containers with water spray, control runoff to avoid environmental contamination
Special Procedures: Remove containers from fire area if safe, stay upwind, avoid contact with decomposition byproducts
Personal Precautions: Evacuate area of untrained personnel, ventilate closed spaces, wear gloves, safety goggles, suitable mask
Environmental Precautions: Prevent run-off into sewers, surface water, or soil, notify regulatory authorities if contamination occurs
Containment: Absorb spills with sand or inert material, collect waste in sealed labeled containers
Cleanup Methods: Wash spill area with soap and water after removal, ventilate site post-cleanup, dispose of waste in accordance with regional regulations
Handling: Keep containers tightly sealed, avoid splashing, do not eat, drink, or smoke in work area, minimize dust, wear protective gloves, goggles, coat, avoid inhalation of vapor or dust
Storage: Store in cool, dry, ventilated place away from sunlight and incompatible materials such as oxidizers, acids, and strong bases, use lockable chemical storage or certified cabinet, keep separate from food and drink supplies, store with proper signage and restricted access
Occupational Exposure Limits: No national occupational limits assigned; working in well-ventilated spaces or under fume hood recommended
Engineering Controls: Local exhaust recommended; enclosure or isolation for large-scale operations
Personal Protective Equipment: Chemical-resistant gloves, lab coat or apron, closed-toe shoes, chemical splash goggles, face shield for potential splashes, suitable mask or respirator if handling powder or in confined space
Hygienic Measures: Thorough hand-washing after handling, change and wash contaminated clothing before reuse, restrict access to areas involved in preparation and cleanup
Appearance: Pale yellow to light brown solid or crystalline powder
Odor: Sulfurous, faintly acrid
Molecular Weight: 207.06 g/mol
Melting Point: 79 - 83°C
Boiling Point: Not well defined under atmospheric conditions
Solubility: Partly soluble in organic solvents, low solubility in water
Vapor Pressure: Low at room temperature
Density: 1.42 - 1.49 g/cm³
pH: Not applicable (non-aqueous solid)
Flash Point: Information not established due to low volatility
Partition Coefficient: Not available
Decomposition Temperature: Above 190°C
Chemical Stability: Remains stable under recommended storage and handling conditions
Reactivity: May react with strong acids, bases, and oxidizers
Hazardous Polymerization: No risk of polymerization under normal use
Hazardous Decomposition Products: Emits hydrochloric acid, sulfur dioxide, and other toxic gases if combusted or heated excessively
Conditions to Avoid: High humidity, excessive heat, strong sources of ignition or incompatible materials exposure
Acute Toxicity: Evidence suggests harmful effects by ingestion, with low to moderate dose range (LD50 in rats estimated between 300-2000 mg/kg)
Skin Irritation: Direct contact leads to redness, pain, possibly mild burns or blisters
Eye Irritation: Causes serious irritation, watering, redness, may provoke vision problems if not washed out promptly
Chronic Toxicity: No carcinogenicity or mutagenicity data available, prolonged or repeated exposure may cause organ irritation
Sensitization: No animal or human data for allergic skin or respiratory response
Other Effects: May cause drowsiness, dizziness, gastrointestinal discomfort short term; no known reproductive toxicity
Symptoms: Burning sensation, headache, nausea, abdominal pain, coughing, irritated mucous membranes possible after direct exposure
Aquatic Toxicity: Toxic to aquatic animals and plants at low concentrations, persistent in sediment and water
Persistence and Degradability: Slow breakdown, resists rapid photolysis or hydrolysis, may accumulate in the environment
Bioaccumulation: Data insufficient, structure suggests moderate potential
Mobility in Soil: May leach into groundwater if handled in open systems
Other Adverse Effects: Risk of secondary effects through contamination of waterways or soil
Waste Disposal Methods: Collect residue and contaminated absorbent for incineration at authorized hazardous waste facilities
Disposal of Containers: Triple rinse empty containers, puncture, and dispose as hazardous chemical waste, avoid reuse
Special Precautions: Do not discard to municipal wastewater, avoid open dumping, comply with local, regional, and national regulations
Contaminated Packaging: Treat as hazardous waste, label and store until proper pickup by licensed facility
UN Number: Not assigned for this compound
Transport Hazard Class: Not classified as dangerous under current UN road and air codes, may fall under hazardous for bulk transport
Proper Shipping Name: Organic solid, not otherwise specified (if transported as bulk chemical)
Packing Group: III (moderate hazard; based on generic chemistry)
Environmental Hazards: Marine pollutant regulations may apply for large shipments
Special Precautions: Shield from direct sun, keep separate from food and feed, use sealed packaging, document all movements as per regulatory guidelines
Safety, Health, Environmental Regulations: Compliance with REACH, OSHA Hazard Communication Standard, TSCA inventory for US handlers, WHMIS for Canada, proper regional workplace labeling
Hazard Pictograms: GHS-compatible, including environment for aquatic hazard and health for irritancy
Inventory Listings: Subject to chemical inventory listing in destination country
User Category: For scientific, industrial research, limited professional use only, not for consumer applications
Other Relevant Legislation: Subject to chemical hygiene planning, hazardous material handling records, spill and exposure record-keeping as required locally
