Product Name: 4-Vinylcatechol
Chemical Formula: C8H8O2
Synonyms: 4-Ethenyl-1,2-benzenediol, 4-Vinylpyrocatechol
CAS Number: 26524-08-1
Recommended Use: Laboratory reagent, chemical synthesis, research and development
Supplier: Please refer to package label or distributor
Emergency Contact: Refer to local regulations and supplier emergency phone number
GHS Classification: Acute toxicity (oral, dermal, inhalation), Skin corrosion/irritation, Eye damage/irritation, Specific target organ toxicity
Signal Word: Danger
Hazard Statements: Toxic if swallowed, Causes severe skin burns and eye damage, Harmful if inhaled, Harmful to aquatic life with long lasting effects
Pictograms: Skull and crossbones, Corrosive, Exclamation mark, Environment
Precautionary Statements: Avoid all unnecessary exposure, Do not breathe dust or vapors, Wear protective gloves and eye protection, Wash hands thoroughly after handling, Use only outdoors or in a well-ventilated area
Chemical Name: 4-Vinylcatechol
Purity: Typically >98% by weight
EC Number: 247-748-1
Impurities: Trace phenols, possible hydroxy-substituted aromatic compounds
Other Components: None known that impact classification
Inhalation: Move victim to fresh air immediately, keep at rest in a position comfortable for breathing, seek urgent medical attention
Skin Contact: Remove contaminated clothing, rinse skin with plenty of water for at least 15 minutes, seek medical advice if irritation or burns occur
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, continue rinsing, consult physician promptly
Ingestion: Do not induce vomiting, rinse mouth with water, seek immediate medical attention
Signs/Symptoms of Exposure: Burning sensation, coughing, headache, shortness of breath, severe eye irritation, local skin redness or blistering, gastrointestinal upset
Suitable Extinguishing Media: Carbon dioxide, dry chemical powder, foam
Unsuitable Media: Strong water jets, due to potential spread of corrosive material
Specific Hazards: May emit toxic fumes such as carbon monoxide, carbon dioxide, phenolic compounds
Protective Equipment: Wear self-contained breathing apparatus and full protective gear
Advice for Firefighters: Approach fire from upwind to avoid hazardous vapors; cool closed containers exposed to fire with water spray
Personal Precautions: Evacuate area, ventilate space, wear chemical-resistant gloves and eye/face protection
Environmental Precautions: Prevent further leakage or spillage if safe to do so, contain material to avoid release into sewers or waterways
Cleanup Methods: Absorb spill with inert material such as sand or vermiculite, place waste in suitable closed container for disposal, wash spill site after material pick up
Reference to Other Sections: Refer to personal protective equipment recommendations and disposal considerations below
Handling: Avoid breathing vapors, dust, or mist, avoid skin and eye contact, only handle with suitable local exhaust ventilation, do not eat, drink, or smoke in work area, wash hands after use
Storage Conditions: Store in tightly closed original container in cool, dry, well-ventilated space away from incompatible substances such as strong oxidizing agents or bases
Storage Temperature: Store below 30°C if possible to prevent decomposition
Incompatible Materials: Bases, oxidizers, strong reducing agents
Packaging Materials: Use corrosion-resistant, tightly sealed containers
Exposure Limits: No established occupational exposure limit data for 4-vinylcatechol; prevent aerosol and vapor formation
Engineering Controls: Local exhaust ventilation, safety shower, eye wash facilities
Personal Protective Equipment: Chemical-resistant gloves (nitrile recommended), splash-proof goggles or full face shield, lab coat, impervious footwear
Respiratory Protection: Use NIOSH-approved respirator for organic vapors if exposure limits may be exceeded
Environmental Exposure Controls: Prevent releases to water systems by using containment and proper waste disposal
Appearance: Colorless to pale yellow crystalline solid or powder
Odor: Mild phenolic
pH: Not applicable (solid material)
Melting Point: 68–74°C
Boiling Point: Above 230°C (may decompose before boiling)
Flash Point: Above 100°C (closed cup, estimated)
Solubility: Soluble in water and many organic solvents
Vapor Pressure: Low at ambient temperature
Density: About 1.2–1.3 g/cm³
Stability: Can darken on exposure to air or light
Molecular Weight: 136.15 g/mol
Chemical Stability: Stable under normal temperatures and storage conditions, darkens and may decompose slowly with exposure to air or light
Reactive Conditions: Reacts with strong bases, oxidizing agents, may polymerize under some storage conditions
Decomposition Products: Carbon monoxide, carbon dioxide, phenolic and organic acids, smoke
Hazardous Reactions: Exothermic polymerization possible with strong initiators or base contamination
Acute Toxicity: Harmful if swallowed or in contact with skin, estimated LD50 (oral, rat) between 100 - 300 mg/kg
Skin Corrosion/Irritation: Causes skin burns or irritation
Serious Eye Damage/Irritation: Causes severe eye burns
Respiratory Sensitization: Limited data suggest possible respiratory effects at high concentrations
Long-Term Effects: Prolonged or repeated exposure may lead to dermatitis or other skin disorders
Other Effects: Data on carcinogenicity, mutagenicity, or reproductive toxicity insufficient for classification under current guidelines
Aquatic Toxicity: Harmful to aquatic organisms based on structural similarities to phenolic compounds; may cause long-term adverse effects in the aquatic environment
Persistence and Degradability: Moderately persistent; expected to biodegrade slowly in natural conditions
Bioaccumulative Potential: Low expected based on water solubility and estimated octanol-water partition coefficient
Mobility in Soil: High, due to water solubility
Other Adverse Effects: Avoid direct release into environment to prevent local toxicity and disruption of microbial life
Waste Treatment Methods: Dispose of material as hazardous chemical waste, use licensed disposal contractor
Product Disposal: Incinerate or chemically treat in accordance with local, national, and international regulations
Contaminated Packaging: Treat as hazardous waste, rinse thoroughly before recycling or disposal only if permitted by local authorities
Sewage Disposal: Do not discharge into drains, surface water, or groundwater
UN Number: Not specifically assigned, treat as hazardous substance
UN Proper Shipping Name: Toxic solid, organic, n.o.s. (4-vinylcatechol)
Transport Hazard Class: 6.1 (toxic), 8 (corrosive, if applicable)
Packing Group: II or III depending on concentration and container size
Environmental Hazard: None assigned but treat as environmentally hazardous material
Special Precautions: Prevent damage to containers in transit, carry emergency response information
Global Inventory Status: Not listed on all major chemical inventories (check individual jurisdictions)
International Regulations: Subject to workplace safety and transportation rules for hazardous chemicals
OSHA Status: Not specifically regulated but subject to general hazard communication requirements
TSCA (USA): May not appear on TSCA Inventory, for research use only
REACH (EU): Registration may be required for quantities above threshold; handle according to local environmental safety standards
Other: Consult regional, national, and local regulations for further requirements and restrictions
