Product Name: 2,3,5-Trioxathiophene
Chemical Family: Heterocyclic sulfur compound
CAS Number: Not assigned or limited public data
Synonyms: Trioxathiophene
Recommended Use: Research, synthesis intermediate, specialty chemical
Restrictions: Industrial and laboratory applications; not for food, drug, or household use
Supplier: [Placeholder — User to supply specific supplier information]
Emergency Contacts: [Placeholder — User to supply poison control and local emergency numbers]
Classification: Acute Toxicity (Oral, Inhalation), Skin and Eye Irritant, Flammable Liquid
Signal Word: Danger
Hazard Statements: Causes skin and eye irritation, toxic if ingested or inhaled, suspected organ toxicity, fire hazard in presence of ignition
Symptoms: Irritation of nose, throat, mouth; headache; nausea; irritation or redness if in contact with eyes or skin
Pictograms: Flame, exclamation mark, skull and crossbones
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Chemical Name: 2,3,5-Trioxathiophene
Concentration: 98% or higher (lab grade); trace impurities may include starting reagents or byproducts
Molecular Formula: C4H4O3S3
Molecular Weight: 180.3 g/mol
Purity Notes: Confirm lot-specific purity with supplier Certificate of Analysis
Impurities: Trace amounts of related thiophene compounds, possible stabilized by small quantities of inhibitors
Inhalation: Move to fresh air promptly; seek medical help if breathing difficulties occur; oxygen support if needed
Skin Contact: Remove contaminated clothing, flush skin thoroughly with water for at least 20 minutes; wash with soap; consult doctor if irritation persists
Eye Contact: Rinse eye(s) with water for 20 minutes, keeping eyelids open; remove contact lenses if possible; get medical evaluation
Ingestion: Rinse mouth with water; never give food or drink to unconscious person; seek emergency medical attention; do not induce vomiting unless directed
Special Notes: Bring MSDS or chemical label to medical professionals for reference; monitor for delayed reactions
Extinguishing Media: Use carbon dioxide, dry chemical powder, or alcohol-resistant foam; water mist may cool surfaces but avoid direct streams
Hazards: Vapors can form explosive mixtures with air; burning releases toxic fumes (sulfur oxides, carbon monoxide)
Protective Equipment: Wear full protective gear including self-contained breathing apparatus; stay upwind to avoid inhaling fumes
Special Procedures: Remove containers from fire area if safe; cool exposed containers with water; avoid run-off to sewers or waterways
Combustion Products: Sulfur dioxide, carbon monoxide, carbon dioxide, possibly hydrochloric acid if mixed with other materials
Personal Precautions: Evacuate area; ventilate location; avoid breathing vapors; use gloves, eye protection, and dust mask or respirator
Methods for Clean Up: Absorb spill with inert material (sand, vermiculite); scoop into chemical waste container; seal for proper disposal
Prevention: Stop leak if safe; prevent entry into drains or water bodies; avoid contact with skin or clothing
Decontamination: Wash area with water and mild detergent after cleanup; ventilate room; ensure disposal of contaminated material following local law
Precautions: Avoid breathing vapors; prevent eye/skin contact; work under chemical hood
Safe Handling: Use equipment and methods to minimize risk of spray or splash; ground/bond containers for transfers
Storage Conditions: Store in cool, dry, well-ventilated space; keep tightly closed in original container; segregate from oxidizers, bases
Incompatibility: No contact with strong acids, alkalis, oxidizing agents; avoid heat or sources of ignition
Hygiene: No eating, drinking, or smoking in workspace; wash hands fully after use; remove contaminated clothing before leaving area
Occupational Exposure Limits: None established; treat as potentially hazardous in absence of data
Engineering Controls: Chemical fume hood, flame-resistant work surfaces, spark-proof ventilation
Personal Protection: Splash goggles, chemical-resistant gloves (nitrile or butyl rubber), lab coat, closed-toe shoes
Respiratory Protection: Use respirator if vapor concentration becomes high or above exposure limits; select type as per current NIOSH/OSHA guidelines
Environmental Exposure: Prevent release to environment; maintain spill containment equipment ready in storage/handling area
Appearance: Pale yellow, crystalline solid or powder
Odor: Sulfurous, slightly sharp
pH (aqueous solution): Not determined
Melting Point: 82-86°C
Boiling Point: Data not widely available; estimated thermal decomposition near boiling
Flash Point: Data not widely available; likely flammable in solid state at elevated temperatures
Solubility: Low in water, soluble in polar organic solvents
Vapor Pressure: Not measured; handle as volatile at high temperatures
Relative Density: Approx. 1.5 (estimated)
Partition Coefficient (n-octanol/water): Not established, predicted moderate hydrophobicity
Evaporation Rate: Not determined; likely slow at room temperature
Chemical Stability: Stable under normal conditions; decomposes with excessive heat or in presence of strong oxidizers
Incompatibility: Strong acids, alkali metals, oxidizing agents, combustible materials with low ignition point
Hazardous Decomposition: Sulfur dioxide, carbon monoxide, carbon dioxide
Polymerization: Not expected under normal process conditions; monitor for unexpected temperature rise in bulk storage
Other Notes: Sensitive to moisture and heat; store under inert gas if recommended
Acute Toxicity: Oral and inhalation routes show moderate to high toxicity in animal models
Skin Contact: Causes mild to severe irritation, dermatitis possible with prolonged or repeated exposure
Eye Contact: Severe irritation possible, possible permanent damage without immediate washing
Sensitization: Data limited; potential for sensitizing reactions exists
Chronic Toxicity: No long-term human data available; similar compounds linked to organ toxicity
Mutagenicity, Carcinogenicity, Reproductive Toxicity: No evidence found, but data missing; treat as if risk exists
Potential Effects: Nausea, headache, mucous membrane irritation, drowsiness at high exposures
LD50 Data: Not available for this compound; related thiophenes range from 50-500 mg/kg (oral, rat)
Environmental Impact: Harmful to aquatic organisms; long-term adverse effects possible in aquatic environments
Aquatic Toxicity: Data lacking, use caution
Biodegradation: Low to moderate rate predicted; breaks down slowly in soil or water
Mobility: Likely low in soil due to hydrophobicity; risk of groundwater contamination if spilled in large volumes
Bioaccumulation: Possible, monitor if released to environment
Precautionary Measures: Contain spills, prevent entry to surface water, ditches, soil
Waste Disposal: Collect material in tightly sealed, labeled chemical waste container; handle as hazardous waste
Incineration: Preferred method, at licensed facility with appropriate scrubbers for sulfur/carbons
Contaminated Packaging: Treat residues as hazardous; avoid reuse; offer to licensed disposal contractor
Local Regulations: Follow all regional, national, and local environmental rules; notify authorities in cases of accidental release
UN/ID Number: Not assigned; ship as “hazardous, not otherwise specified” if requirements call
Transport Hazard Class: 6.1 (Toxic Substances), 3 (Flammable), as applicable
Packing Group: II or III (moderate to minor danger)
Label: Toxic, Flammable Liquid
Handling During Transit: Avoid shock, vibration, elevated temperatures
Special Precautions: Secure cap; package in compatible material; have MSDS accessible en route
Inventory Listings: Not listed on major inventories (TSCA, DSL, EINECS); research/approval required
U.S. Regulations: Not specifically regulated; falls under OSHA hazardous chemical standards
EU Regulations: May require substance registration for import/workplace; check local directives
Other: User must comply with chemical hygiene, reporting, and safety protocols for specialty research chemicals
Workplace Limits: No OEL/TWA established; use best engineering controls and PPE methods
Authorizations, Restrictions: None assigned; operator responsible for compliance on local, state, national levels
