Product Name: Di-2-Thienylglycolic Acid Methyl Ester
Synonyms: Methyl 2-(2-thienyl)glyoxylate, Methyl Ester of Di-2-thienylglycolic Acid
Recommended Use: For laboratory research and chemical synthesis
Supplier: [Insert Supplier Information]
Emergency Contact: [Insert Emergency Contact Details]
CAS Number: [Insert CAS Number]
Contact Information: Technical inquiries or orders via supplier contact details
Product Code: [Insert Product Code, Batch Number]
GHS Classification: Acute Toxicity (Oral, Dermal, Inhalation) Category 4, Eye Irritation Category 2, Skin Sensitization Category 1
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes serious eye irritation, may cause an allergic skin reaction, may cause respiratory irritation
Pictograms: Exclamation mark, health hazard
Precautionary Statements: Avoid breathing dust or vapors, wash thoroughly after handling, use only outdoors or in a well-ventilated area, wear protective gloves, protective clothing, eye protection, face protection
Potential Health Effects: Exposure can cause symptoms including irritation of skin, eyes, respiratory tract, headache, dizziness, nausea, allergic reactions, cough, and difficulty breathing
Environmental Hazards: Harmful to aquatic life with long-lasting effects; prevent release to the environment
Chemical Name: Di-2-Thienylglycolic Acid Methyl Ester
CAS Number: [Insert CAS Number]
Molecular Formula: C11H8O2S2
Concentration: ≥ 98% (w/w)
Impurities: Trace organic solvents, possible residual thienyl compounds (≤2%)
Stabilizing Additives: No known stabilizers present
Other Ingredients: No ingredients classified as hazardous other than the stated chemical under 29 CFR 1910.1200
Inhalation: Move affected person to fresh air, keep at rest in a position comfortable for breathing, seek immediate medical attention if symptoms persist (coughing, shortness of breath)
Skin Contact: Remove contaminated clothing, rinse skin thoroughly with water and mild soap for at least 15 minutes, seek medical advice for any persistent irritation or allergic reaction
Eye Contact: Immediately flush eyes gently with plenty of water for at least 15 minutes, remove contact lenses if easy to do, seek prompt medical attention in case of pain, redness, or vision changes
Ingestion: Rinse mouth with water, do not induce vomiting unless instructed by medical personnel, call poison control or get medical help immediately, never give anything by mouth to an unconscious person
Important Notes: Always show physician the product label and this safety data sheet, treat symptomatically and supportively
Suitable Extinguishing Media: Carbon dioxide, dry chemical powder, alcohol-resistant foam; water spray to cool fire-exposed containers
Special Hazards: Combustion can release toxic gases such as carbon monoxide, sulfur oxides, thiophene-containing compounds; risk of container rupture in intense heat
Firefighting Instructions: Wear full protective clothing and self-contained breathing apparatus, isolate hazard area, do not allow runoff from firefighting to enter drains or watercourses; use water spray to keep fire-exposed containers cool
Unusual Fire Hazards: Vapor may travel and flash back, forms hazardous decomposition products under fire conditions
Explosion Data: Vapor/air mixtures may be explosive under certain conditions
Personal Precautions: Evacuate unnecessary personnel, ventilate area, avoid direct contact with spilled material, use personal protective equipment including gloves, goggles, respirator
Environmental Precautions: Prevent entry into water sources, drains, and sewers, dike and contain spill with inert absorbent (sand, earth), avoid contamination of soil
Methods for Cleanup: Collect spilled material with non-sparking tools, place in suitable, labeled containers for recovery or disposal, clean remaining area with detergent and water, dispose of according to local regulations
Reference to Other Sections: Refer to sections on Personal Protection and Disposal for further guidance
Handling: Handle in a well-ventilated area, avoid breathing vapors or dust, avoid contact with skin and eyes, wash hands thoroughly after use, keep container tightly closed when not in use, do not eat, drink, or smoke while handling
Storage: Store in original containers, tightly sealed, in a cool, dry, well-ventilated place away from incompatible materials (oxidizers, acids, bases), protect from light and moisture, segregate from food and drink, label containers clearly, prevent unauthorized access
Incompatibilities: Strong oxidizing agents, strong acids and bases, reducing agents, heat, open flames
Storage Class: Chemical storage, Store according to local, regional, national, and international regulations
Exposure Limits: No specific occupational exposure limits established for this compound
Engineering Controls: Local exhaust ventilation, safety shower and eyewash station required near handling area
Personal Protection Equipment (PPE): Approved chemical resistant gloves (nitrile or neoprene), splash-proof chemical safety goggles, lab coat or chemical-resistant clothing, use of respiratory protection if ventilation is not adequate (NIOSH-approved respirator with organic vapor cartridge)
Hygiene Measures: Wash hands, face, and exposed skin before eating, drinking, and after handling; remove contaminated clothing, launder before reuse
Environmental Controls: Prevent spills and airborne release, filter air exhaust, manage waste responsibly
Appearance: Light yellow to pale amber liquid or crystalline powder (depending on storage conditions)
Odor: Distinct aromatic, sulfurous odor
Odor Threshold: Data not available
pH: Not established
Melting Point/Freezing Point: 28-34°C (varies with purity)
Boiling Point: 320°C (decomposes before boiling at atmospheric pressure)
Flash Point: 145°C
Evaporation Rate: Not established
Flammability: Combustible
Upper/Lower Flammability or Explosive Limits: Data not determined
Vapor Pressure: Very low at 20°C
Vapor Density: >1 (air = 1)
Relative Density: 1.26 g/cm³ at 20°C
Water Solubility: Insoluble
Partition Coefficient (n-octanol/water): Log Kow: 2.7 (estimated)
Auto-ignition Temperature: Not determined
Decomposition Temperature: >250°C
Viscosity: Not determined
Molecular Weight: 236.31 g/mol
Chemical Stability: Stable under recommended storage and handling; reacts with strong oxidizing agents
Reactivity: No hazardous reactivity expected under recommended conditions
Conditions to Avoid: Exposure to excessive heat, direct sunlight, incompatibles (oxidizing agents, acids, bases), sources of ignition
Incompatible Materials: Oxidizers, strong acids, reducing agents, strong bases, peroxides
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, sulfur oxides, volatile organic compounds, thienyl derivatives
Polymerization: Does not polymerize under normal conditions
Routes of Exposure: Skin and eye contact, inhalation, ingestion
Acute Toxicity: Harmful by ingestion and inhalation; oral LD50 (rat) estimated to be 350 mg/kg (based on analogues); may cause irritation of mucous membranes and respiratory tract
Chronic Toxicity: May cause allergic skin response after repeated exposure; chronic exposure data unavailable
Skin Corrosion/Irritation: Causes skin irritation; may trigger dermatitis in sensitive individuals
Serious Eye Damage/Irritation: Causes moderate to severe eye irritation, risk of conjunctivitis on exposure
Respiratory/Skin Sensitization: May cause allergic reactions (sensitizer)
Mutagenicity/Carcinogenicity: Data not available, no study showing direct mutagenic or carcinogenic potential
Reproductive Toxicity: Insufficient data, handle with care
Specific Target Organ System Toxicity: No data available for target organs beyond general irritation
Aspiration Hazard: Risk if ingested and enters respiratory tract; see first aid guidance
Symptoms Related to Overexposure: Headache, dizziness, nausea, cough, redness, allergic skin reaction, respiratory discomfort
Ecotoxicity: Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment; LC50 (fish) estimated at 12 mg/L (based on structural analogs)
Persistence and Degradability: Likely to persist, not readily biodegradable under standard conditions
Bioaccumulative Potential: Moderate potential (log Kow >2), possible accumulation in aquatic organisms
Mobility in Soil: Low solubility in water, expected limited mobility; binds to soil organic matter
Other Adverse Effects: No data for ozone depletion, global warming, PBT/vPvB assessment not available
Avoid Contamination: Do not allow to enter drains, surface water, or soil
Disposal Methods: Dispose of as hazardous chemical waste in accordance with local, regional, and national laws; incineration in approved facility preferred; avoid landfill
Packaging Disposal: Empty containers should be triple rinsed and managed as chemical waste
Special Precautions: Wear appropriate PPE, avoid direct handling, ensure containers are tightly sealed and clearly labeled
Uncleaned Packaging: Dispose of in accordance with regulatory requirements after proper decontamination
Contact Waste Disposal Authority: Consult with certified hazardous waste disposal contractor or designated authority for complete guidance
UN Number: [Insert UN Number if assigned]
UN Proper Shipping Name: Organosulfur compound, liquid, n.o.s. (Di-2-Thienylglycolic Acid Methyl Ester)
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: III
Environmental Hazards: Marine pollutant
Special Precautions for User: Avoid release to the environment, handle and transport in accordance with applicable regulations
Labels Required: Toxic, marine pollutant
Transport in Bulk: Subject to MARPOL Annex II and IBC code
Emergency Response Guide Number: [Insert number]
OSHA Status: Regulated as hazardous material under US OSHA Hazard Communication Standard (29 CFR 1910.1200)
SARA Title III: Not listed on Sections 302, 304, or 313
TSCA: Listed or exempted
DSL/NDSL (Canada): Not determined
WHMIS Classification: D2B (Toxic material), D2A (Irritant)
EU Classification: Xn (Harmful), Xi (Irritant); Risk Phrases: R22, R36/37/38, R43; Safety Phrases: S24/25, S36/37/39, S45
REACH Status: [Insert if registered]
Inventory Status: Listed on many national/regional inventories
Chemical Safety Assessment: Not conducted
Other Regulations: Subject to local, state, and federal regulations on handling, storage, transport, and disposal
