Boxa Chemical Group Ltd
Knowledge

Material Safety Data Sheet: 5-Methylresorcinol

Identification

Product Name: 5-Methylresorcinol
Chemical Formula: C7H8O2
Chemical Family: Alkylresorcinol
CAS Number: 489-56-7
Synonyms: 5-methyl-1,3-benzenediol, 3,5-dihydroxytoluene
Intended Use: Intermediate for dyes, cosmetics, analytical reagents
Supplier / Manufacturer: Details available upon request
Contact for Emergency: Refer to company-specific emergency contacts or Poison Control Center

Hazard Identification

Hazard Classification: Eye irritation category 2A, Skin irritation category 2
Signal Word: Warning
Pictograms: Exclamation mark
Hazard Statements: Causes serious eye irritation, causes skin irritation
Precautionary Statements: Avoid breathing dust, wash thoroughly after handling, wear protective gloves and eye/face protection
Potential Health Impacts: Irritation of respiratory system, redness and pain in eyes or skin upon contact
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Long-term Exposure Risks: No known carcinogenicity or chronic health effects from limited available data, but repeated contact can cause dermatitis

Composition / Information on Ingredients

Chemical Identity: 5-Methylresorcinol
CAS Number: 489-56-7
Concentration: >98% pure
Impurities: Minimal, generally below 2%, types vary among suppliers

First Aid Measures

Inhalation: Move to fresh air, seek medical attention for symptoms like coughing, shortness of breath, or irritation
Skin Contact: Wash immediately with soap and plenty of water for at least 15 minutes, remove contaminated clothing, seek advice for persistent irritation
Eye Contact: Flush immediately with clean water for at least 15 minutes, keep eyelids open, do not rub eyes, seek medical help if redness or pain continues
Ingestion: Rinse mouth, do not induce vomiting, seek medical aid, provide medical personnel with product label or safety sheet
Note for Physicians: Treat symptomatically, no specific antidote

Fire-Fighting Measures

Suitable Extinguishing Media: Dry chemical, foam, carbon dioxide, water spray
Special Hazards: May emit toxic fumes under fire conditions including carbon monoxide and carbon dioxide
Protective Equipment: Firefighters should use self-contained breathing apparatus and full protective gear
Advice: Use standard firefighting procedures, prevent runoff from entering water bodies, cool containers with water

Accidental Release Measures

Personal Precautions: Avoid inhaling dust, ventilate area, wear protective gloves, goggles, and approved respirator
Environmental Precautions: Prevent spill from entering drains, water systems, or soil
Clean-up Methods: Use non-sparking tools, sweep up and place in suitable container for disposal, wash spill site with water after collection, decontaminate all equipment

Handling and Storage

Safe Handling: Reduce dust formation, avoid contact with skin and eyes, use local exhaust ventilation for large scale or industrial use, do not eat or drink near product
Safe Storage: Store in a tightly closed container in a cool, dry, well-ventilated area away from incompatible substances
Incompatible Materials: Strong oxidizers, strong acids, strong bases
Storage Temperature: Ambient room temperature, away from direct sunlight and moisture

Exposure Controls and Personal Protection

Exposure Limits: No established occupational exposure limits (TLV, PEL) for 5-Methylresorcinol
Engineering Controls: Use fume hood or local exhaust for laboratory handling
Personal Protective Equipment: Hand protection: Chemical-resistant gloves, such as nitrile or neoprene
Eye protection: Safety goggles or face shield
Skin protection: Lab coat or apron, long sleeves, closed shoes
Respiratory protection: Approved dust mask in case of dust formation

Physical and Chemical Properties

Appearance: White to pale beige crystalline powder
Odor: Mild, phenolic
Molecular Weight: 124.14 g/mol
Melting Point: 144–147°C
Boiling Point: Not well established, decomposition likely above melting point
Solubility: Soluble in water, alcohol, and ether
pH: Slightly acidic in solution
Vapor Pressure: Negligible at 20°C
Partition Coefficient (log Pow): Estimated 0.82
Flash Point: 185°C (closed cup, approximate)
Autoignition Temperature: No data available
Evaporation Rate: Not applicable
Explosive Properties: Dust may form explosive mixture with air in rare cases of fine particulate handling

Stability and Reactivity

Chemical Stability: Stable under recommended conditions
Incompatible Materials: Reacts with strong oxidizers, acids, bases
Hazardous Decomposition Products: Phenolic fumes, carbon monoxide, carbon dioxide upon thermal decomposition
Hazardous Reactions: No hazardous polymerization reported
Conditions to Avoid: Contact with incompatible substances, excessive heat, sources of ignition, humidity

Toxicological Information

Acute Toxicity: Oral LD50 (rat) >2000 mg/kg, low acute toxicity via skin or inhalation route
Skin Irritation: Irritating with prolonged or repeated contact
Eye Irritation: Causes irritation, may cause lasting effects if not rinsed immediately
Respiratory Sensitization: May cause respiratory irritation if dust is inhaled
Chronic Effects: Frequent exposure can lead to skin dryness or cracking, no confirmed carcinogenic or reproductive effects
Sensitization: Not a sensitizer based on current animal testing
Mutagenicity: No significant data showing mutagenic potential

Ecological Information

Aquatic Toxicity: No specific aquatic toxicity data, similar compounds moderately toxic to aquatic organisms
Persistence and Degradability: Readily biodegradable under standard conditions
Bioaccumulation: Low expected potential due to log Pow under 1
Mobility in Soil: Likely to be mobile, soluble in water, can percolate into soil
Other Harmful Effects: Prevent release into natural waterways, avoid contamination of groundwater

Disposal Considerations

Waste Treatment Methods: Dispose in compliance with local, regional, and national regulations
Disposal of Product: Incinerate in chemical incinerator equipped with afterburner and scrubber, or send to licensed chemical disposal facility
Disposal of Contaminated Packaging: Rinse containers thoroughly, treat rinsate as hazardous, forward containers to appropriate recycling or waste management center
Avoid Release: Prevent entry into sewers, surface water, or underground water sources

Transport Information

UN Number: Not regulated for transport under ADR, RID, IMDG, IATA
Proper Shipping Name: 5-Methylresorcinol
Transport Hazard Class: Not regulated
Packing Group: Not regulated
Environmental Hazards: Not specifically classified as marine pollutant
Special Precautions: Avoid spillage, prevent dust formation, transport in tightly sealed and labeled containers

Regulatory Information

EU Regulations: Not classified as dangerous under current EU directive 1272/2008 (CLP)
US Regulations: Not listed on RCRA, CERCLA, SARA Title III Section 313
Canadian WHMIS: Not listed as a controlled product
Other National Inventories: Listed on TSCA, EINECS, DSL, AICS
Restrictions: Ensure use complies with all applicable local and national policies for hazardous substances