Boxa Chemical Group Ltd
Knowledge

MSDS for 3-Methoxycatechol

Identification

Product Name: 3-Methoxycatechol
Chemical Formula: C7H8O3
Synonyms: 3-Hydroxy-4-methoxyphenol, 4-Methoxy-1,2-benzenediol
CAS Number: 621-56-7
Recommended Use: Laboratory chemicals, research and development
Supplier Details: Supplier information appears on the product packaging and invoice
Emergency Contact: Local poison control center or emergency services authority

Hazard Identification

Classification: Harmful if swallowed, causes serious eye irritation, may cause respiratory irritation
Signal Word: Warning
Hazard Statements: Harmful if inhaled, causes skin irritation, causes eye irritation, may cause allergic skin reaction
Pictogram: Exclamation mark
Precautionary Statements: Avoid breathing dust or fumes, use only outdoors or in well-ventilated areas, wash thoroughly after handling, wear protective gloves and eye protection

Composition / Information on Ingredients

Chemical Name: 3-Methoxycatechol
Content: ≥98% by weight
CAS Number: 621-56-7
Impurities: Trace amount of related compounds, less than 2% by weight, based on production batch analysis

First Aid Measures

Inhalation: Move to fresh air, keep at rest, seek medical attention if symptoms persist
Skin Contact: Remove contaminated clothing, wash thoroughly with soap and water, contact a physician if irritation develops
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present, seek medical care if irritation continues
Ingestion: Rinse mouth, drink water, never give anything by mouth to an unconscious person, consult a doctor or poison center instantly

Fire-Fighting Measures

Suitable Extinguishing Media: Dry chemical, carbon dioxide, water spray, alcohol-resistant foam
Unsuitable Media: High-pressure water jets
Hazardous Combustion Products: Carbon oxides, irritating fumes and smoke
Protective Equipment: Full protective gear and self-contained breathing apparatus for firefighters
Special Precautions: Approach fire from upwind, keep containers cool with water spray, avoid breathing fumes in case of fire

Accidental Release Measures

Personal Precautions: Wear protective clothing, gloves, goggles, avoid dust formation, ensure adequate ventilation
Environmental Precautions: Prevent further leakage or spillage if safe, avoid discharge to drains, water courses, and soil
Methods for Cleanup: Sweep up, shovel or vacuum spilled material, place in approved disposal container, avoid raising dust, ventilate area, wash spill site after material pick-up is complete

Handling and Storage

Handling: Use with adequate ventilation, avoid contact with skin and eyes, avoid ingestion and inhalation, do not breathe dust, wash hands thoroughly after handling
Storage: Store in tightly closed container, keep in a cool, dry, well-ventilated area, protect from light and moisture, segregate from incompatible substances such as strong oxidizers and acids

Exposure Controls and Personal Protection

Exposure Limits: No occupational exposure limits have been established for 3-Methoxycatechol
Engineering Controls: Use fume hood or local exhaust to minimize exposure
Personal Protective Equipment: Wear chemical-resistant gloves, protective eyewear such as safety glasses or goggles, lab coat or apron, and dust mask or respirator if airborne dust is present
Hygiene Measures: Wash hands, face, and exposed skin after handling, do not eat, drink, or smoke near material

Physical and Chemical Properties

Appearance: White to beige crystalline powder
Odor: Slight phenolic odor
Molecular Weight: 140.14 g/mol
Melting Point: 170-173°C
Boiling Point: Decomposes before boiling
Density: About 1.2 g/cm³
Solubility: Soluble in water, alcohol, and organic solvents
pH: Not applicable (solid material)
Flash Point: Not available
Explosion Limits: Not determined
Vapor Pressure: Negligible at room temperature

Stability and Reactivity

Chemical Stability: Stable under normal storage conditions, sensitive to light and air
Conditions to Avoid: Exposure to high temperature, light, moisture, and incompatible substances
Incompatible Materials: Strong oxidizing agents, acids, bases
Hazardous Decomposition Products: Carbon oxides, toxic fumes may form during decomposition
Polymerization: Not expected to occur under recommended storage conditions

Toxicological Information

Acute Toxicity: Harmful if swallowed, may cause mucous membrane irritation
Skin Contact: May produce moderate irritation, possible allergic reactions
Eye Contact: Causes significant irritation and possible damage with prolonged exposure
Inhalation: Irritating to the respiratory tract, may cause coughing, headaches, dizziness
Chronic Exposure: Not fully studied, repeated or prolonged exposure may cause sensitization of skin
Carcinogenicity: Not classified as carcinogenic by IARC, NTP, or OSHA
Mutagenicity: In vitro studies show weak mutagenic response
Other Data: No reproductive toxicity data available

Ecological Information

Ecotoxicity: Can be toxic to aquatic organisms, avoid environmental release
Persistence and Degradability: Readily biodegradable under aerobic conditions
Bioaccumulative Potential: Low based on measured partition coefficient
Mobility in Soil: Soluble in water, may leach to groundwater if released
Other Adverse Effects: Large spills may pose risk to aquatic ecosystems, always follow procedures to limit environmental impact

Disposal Considerations

Waste Disposal Methods: Dispose as hazardous chemical waste in accordance with local, regional, and national regulations
Container Disposal: Triple rinse containers, puncture packaging, dispose in accordance with chemical waste guidelines
Contaminated Packaging: Recycle or dispose using appropriate chemical waste facility
Special Precautions: Incinerate in approved facility if permitted, do not discharge into drains or environment

Transport Information

UN Number: Not regulated by international transport regulations
Proper Shipping Name: Not classified as dangerous for transport
Transport Hazard Class: Not assigned
Packing Group: Not applicable
Environmental Hazards: None identified for transportation
Special Precautions: Protect from physical damage, moisture, and strong vibrations during transit

Regulatory Information

US TSCA: Listed
EU REACH: Not specifically registered, uses restricted to research and development
OSHA: Not hazardous under OSHA criteria
SARA Title III: Not listed in Sections 302, 304, 313
California Prop 65: No ingredients listed
WHMIS (Canada): Not controlled under WHMIS regulations
Other Regulations: Users must follow relevant health, safety, and environmental laws at the workplace