Chemical Name: 3-Ethoxy-4,6-Difluoro-Dibenzothiophene
Synonyms: No common synonyms known
CAS Number: 1342874-64-1
Recommended Use: Specialized research applications and chemical manufacturing
Supplier Information: Supplier address, emergency phone, email (to be supplied by user)
Emergency Contact: Chemtrec international phone number for chemical emergencies
Product Codes: Internal reference codes applied by manufacturers
Restrictions: Restricted to trained professionals with laboratory experience in handling fluoro-organic compounds
Classification: Acute toxicity, irritation to skin and eyes, specific target organ toxicity (single exposure)
GHS Label Elements: Pictogram(s): Exclamation mark; Signal Word: Warning
Hazard Statements: May cause skin and eye irritation; Harmful if inhaled or swallowed; May cause respiratory tract irritation
Precautionary Statements: Avoid inhalation of dust or vapors; Use appropriate personal protective equipment; Wash hands thoroughly after handling; Keep away from food and drink
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Acute Health Effects: Irritation to mucous membranes, headache from inhaling dust
Chronic Health Effects: Repeated or prolonged exposure may damage respiratory system or skin
Environmental Hazards: May be toxic to aquatic organisms
Chemical Identity: 3-Ethoxy-4,6-Difluoro-Dibenzothiophene
Chemical Formula: C14H10F2OS
Purity: Typically greater than 98%
Impurities: Trace levels of related dibenzothiophene analogs, minor ethoxy, and fluoro aromatic compounds
Stabilizers/Additives: None added under standard supply
Eye Contact: Rinse cautiously with water for at least 15 minutes; remove contact lenses if present and easy
Skin Contact: Remove contaminated clothing; wash affected skin with soap and water; seek medical attention for persistent irritation
Inhalation: Move person to fresh air; provide artificial respiration if breathing stops; contact a doctor immediately if symptoms develop
Ingestion: Rinse mouth with water; do not induce vomiting; seek immediate medical help
Most Important Symptoms/Effects: Irritation, coughing, shortness of breath, abdominal discomfort
Notes for Doctor: Symptomatic treatment recommended; no specific antidote identified
Suitable Extinguishing Media: Use foam, dry chemical powder or carbon dioxide; avoid water if possible
Unsuitable Extinguishing Media: Do not use water jet directly on fire
Specific Hazards from Combustion: Releases toxic fumes including sulfur oxides and hydrogen fluoride
Protective Equipment for Firefighters: Wear self-contained breathing apparatus and full protective gear
Firefighting Procedures: Fight fire from upwind position; move containers away if safe; use water spray to cool surfaces
Personal Precautions: Wear gloves, protective clothing, and eye protection; avoid breathing dust or vapor; evacuate unnecessary personnel
Environmental Precautions: Prevent spills from entering water systems, drains, or soil
Cleanup Methods: Ventilate area; collect material with inert absorbent; store in sealed containers for disposal; clean residual traces with detergent and water
Decontamination: Remove all contaminated clothing and dispose of according to local regulations
Precautions for Safe Handling: Use only with adequate ventilation; wear recommended personal protective equipment; avoid direct contact with skin and eyes; do not eat or drink in work area
Conditions for Safe Storage: Store in tightly closed, labeled container at 2–8°C; avoid humidity; protect from light and incompatible substances
Incompatibilities: Strong acids, strong bases, oxidizing agents, moisture
Other Recommendations: Keep away from ignition sources; keep containers upright to avoid leaks
Occupational Exposure Limits: No specific limits established—treat as hazardous chemical
Engineering Controls: Use fume hood, exhaust fans, or effective ventilation systems
Respiratory Protection: Use properly fitted NIOSH-approved respirator if exposure exceeds recommended levels
Skin Protection: Chemical-resistant lab gloves (nitrile, neoprene), lab coat
Eye Protection: Chemical splash goggles or face shield
Hygiene Measures: Wash hands thoroughly after handling; remove contaminated clothing; avoid bringing contaminated PPE outside lab area
Appearance: Pale yellow to off-white crystalline solid
Odor: No distinctive odor noted; may have faint aromatic scent
Melting Point: 80–86°C (laboratory scale observations)
Boiling Point: No reliable data; estimated above 320°C
Solubility: Low solubility in water; soluble in organic solvents like dichloromethane, toluene
Flash Point: Not established; handle as if combustible
Vapor Pressure: Low, not significant under ambient conditions
Density: Approximately 1.35–1.45 g/cm3
pH: Not applicable
Partition Coefficient (log P): Estimated moderate; log P data limited
Other Data: Stable under recommended storage circumstances; sensitive to heat and light over prolonged periods
Chemical Stability: Stable under normal storage and handling conditions
Reactivity: Nonreactive to air under normal conditions; may react with strong oxidizers or reducing agents
Hazardous Reactions: None known under recommended use
Conditions to Avoid: Exposure to excessive heat, open flames, direct sunlight, humid environments
Incompatible Materials: Strong acids, chlorine, oxidizers, alkali metals
Decomposition Products: Possible release of hydrogen fluoride, sulfur dioxide, and carbon oxides on thermal decomposition; always ventilate work area
Likely Routes of Exposure: Inhalation, ingestion, dermal, ocular
Acute Toxicity: Not fully tested; based on related structures, expect moderate acute toxicity
Skin/Eye Irritation: May cause redness, pain, and discomfort
Inhalation Effects: Cough, sore throat, respiratory discomfort
Ingestion Effects: Nausea, abdominal pain, headache
Chronic Toxicity: Repeated exposure may dry or crack skin; respiratory tract may be affected by regular inhalation exposure
Carcinogenicity: No specific data published; not classified as carcinogen by IARC, NTP, OSHA
Other Data: Effects on organ systems not fully studied; use with caution and employ regular health monitoring for laboratory workers
Ecotoxicity: Toxic to aquatic organisms based on structure; may cause long-term effects in the aquatic environment
Persistence and Degradability: Likely persistent in the environment due to aromatic rings and fluorinated moieties
Bioaccumulative Potential: Moderate risk of accumulation in sediment and aquatic species
Mobility in Soil: Low water solubility limits spread; may bind to soil particles
Other Adverse Effects: No specific testing data; avoid release to the environment as standard good practice in chemical laboratories
Waste Disposal Methods: Dispose of chemical and all contaminated materials as hazardous waste through a licensed chemical disposal contractor
Container Disposal: Triple-rinse containers, remove or deface labels, puncture to prevent reuse, dispose according to regulations
Special Considerations: Consult local, regional, and national disposal regulations; do not dispose of via household drains or landfill
Unused Product: Collect unneeded material for incineration in permitted facility
UN Number: Not assigned
Proper Shipping Name: Chemical, not otherwise specified (research chemical — not regulated in small quantities)
Transport Hazard Class: Not regulated under UN transport rules unless in large quantities
Packing Group: Not assigned for small laboratory packages
Marine Pollutant: May be subject to relevant shipping requirements for aquatic toxicity
Special Transport Precautions: Ship in strong, sealed containers, away from incompatible substances and foodstuffs
Transport Label Requirements: For air shipment, usual labeling for hazardous materials applies if regulations warrant
Inventory Status: May not be listed on US TSCA, EU REACH, or other global inventories; research-use only designation typical
Labeling Requirements: Compliant with OSHA GHS labeling, including hazard pictograms and warning phrases
SARA/Title III Notified: Not subject to SARA reporting thresholds as individual substance
California Prop 65: Not listed; consult current state list
Other Regulations: Subject to local occupational health and safety guidelines; research institutions advised to maintain recordkeeping and risk assessment documentation
Restrictions: For research and professional use only — not for drug, food, or household purposes
