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Product Name: Methyl Paraben
Synonyms: Methyl para-hydroxybenzoate
CAS Number: 99-76-3
EC Number: 202-785-7
Recommended Use: Preservative in cosmetics, pharmaceuticals, and food products
Supplier Identification: Contact local distributor or manufacturer for specific company contact, emergency phone, and address
Emergency Telephone: Consult supplier or local poison center for up-to-date contacts
GHS Classification: Not classified as dangerous under GHS guidelines
Main Hazards: Low acute toxicity, may cause mild skin and eye irritation in rare cases
Signal Word: None required
Hazard Statements: May irritate eyes, skin, mucous membranes
Precautionary Statements: Avoid direct contact, ensure adequate ventilation during handling
Chemical Name: Methyl Paraben
Chemical Formula: C8H8O3
Concentration: Typical concentration is 99% pure
Impurities: Trace quantities of water, related parabens (ethyl, propyl), and synthesis byproducts in very low levels
Other Ingredients: Not applicable for pure substance
Inhalation: Move person to fresh air, support breathing with oxygen if discomfort continues, seek medical advice if symptoms persist
Skin Contact: Remove contaminated clothing, wash affected skin thoroughly with soap and water, seek medical attention for irritation
Eye Contact: Rinse eyes with plenty of water for several minutes, lift eyelids, seek immediate medical attention if irritation or symptoms persist
Ingestion: Rinse mouth, drink water in small sips, do not induce vomiting, seek medical evaluation if large quantity swallowed or symptoms develop
Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide all suitable
Specific Hazards: May decompose under fire conditions to produce carbon oxides and irritating fumes
Protective Equipment for Firefighters: Firefighters should wear self-contained breathing apparatus, chemical-resistant suits, gloves, and boots to avoid inhaling fumes or skin contact
Special Precautions: Avoid breathing smoke, keep containers cool by spraying with water if exposed to fire
Personal Precautions: Use protective gloves, goggles, and dust mask to prevent skin, eye, and respiratory contact
Environmental Precautions: Prevent runoff into sewers, surface water, or soil
Clean-up Methods: Carefully sweep or vacuum spilled solid, avoid creating dust, place in suitable closed waste container for disposal, ventilate area thoroughly
Safe Handling: Handle with care to avoid dust generation, avoid skin and eye contact, practice good industrial hygiene, use local exhaust ventilation
Storage Conditions: Store in tightly sealed containers, keep in cool, dry, well-ventilated place away from heat, light, and incompatible substances like strong oxidizing agents
Incompatible Materials: Strong oxidizers, acids, bases
Long-term Storage: Keep container closed and labeled, protect from moisture, use within shelf-life for stability
Occupational Exposure Limits: No specific workplace exposure limits established, minimize airborne dust concentration
Engineering Controls: Use local exhaust ventilation, maintain air quality
Personal Protective Equipment: Wear suitable gloves (nitrile or latex), safety goggles, dust mask or respirator if dust risk present, lab coat or protective clothing
Hygiene Measures: Wash hands after handling, remove contaminated clothing and wash before reuse, do not eat or drink around chemical
Appearance: White crystalline powder
Odor: Faint characteristic odour
Odor Threshold: Not determined
pH (1% solution): 6–8
Melting Point: 125–128°C
Boiling Point: Not relevant (decomposes)
Flash Point: > 200°C (closed cup)
Flammability: Not highly flammable, but fine dust can form explosive mixtures with air
Vapor Pressure: Negligible at room temperature
Density: ~1.46 g/cm³
Solubility: Slightly soluble in water, readily soluble in alcohol and ether
Partition Coefficient (log Kow): Estimated at 1.96
Autoignition Temperature: Not available
Decomposition Temperature: ~265°C
Viscosity: Not applicable for solid
Stability: Stable under recommended storage and handling conditions
Conditions to Avoid: High temperatures, exposure to light, moisture, sources of ignition, incompatible chemicals
Materials to Avoid: Strong acids, alkalis, oxidizing substances
Hazardous Decomposition Products: Carbon dioxide, carbon monoxide, possible benzoic acid derivatives
Polymerization: Will not polymerize under normal conditions
Acute Toxicity: Low toxicity by oral, dermal, and inhalation routes (Oral LD50 in rat: >2000 mg/kg)
Skin Corrosion/Irritation: Non-irritating in most users, but reactions possible in sensitive individuals
Eye Damage/Irritation: May cause transient eye irritation
Respiratory Sensitization: No evidence of sensitization, but avoid inhaling dust
Mutagenicity/Carcinogenicity: No known mutagenic, carcinogenic, or reproductive hazards in humans at normal exposure levels
Other Effects: Long-term or chronic exposure data limited; not considered cumulative toxicant at common levels
Environmental Fate: Degrades in soil and surface water through hydrolysis and biodegradation
Aquatic Toxicity: Slightly toxic to aquatic organisms, LC50 (48h) for Daphnia magna reported at ~36 mg/L
Persistence and Degradability: Readily biodegradable under most environmental conditions, does not persist bioaccumulatively
Bioaccumulation Potential: Low, not expected to bioconcentrate in organisms
Mobility in Soil: Moderate solubility and low adsorption to soil particles, subject to leaching under certain conditions
Other Adverse Effects: Widespread use in personal care has led to trace presence in some wastewater, but treated municipal water rarely exceeds regulatory thresholds
Waste Disposal: Collect solid waste in approved chemical waste containers, dispose according to local, regional, and national regulations
Product Disposal: Do not flush large quantities into sewage systems, landfill or incinerate only in accordance with official recommendations
Packaging Disposal: Empty containers or packaging should be disposed safely, recycle if facilities exist, otherwise follow chemical packaging guidelines
Precautions: Do not contaminate ground, surface water, or drains with discarded product or containers
UN Number: Not regulated as a hazardous material for ground, sea, or air transport
UN Proper Shipping Name: Not applicable
Transport Hazard Class: None
Packing Group: None
Environmental Hazards: Not classified as marine pollutant
Transport Precautions: Secure against falling, tipping, or breakage during transit; avoid extreme temperatures to maintain product quality
Special Transport Notes: Follow standard practices for safe shipping of dry chemicals
Specific Regulations: Listed on major chemical inventories including TSCA (US), EINECS (EU), DSL (Canada), AICS (Australia)
Occupational Health and Safety: Not classified as hazardous under OSHA, CLP, or WHMIS regulations
Food/Pharmaceutical Legislation: Approved as a food additive and pharmaceutical preservative within concentration limits established by FDA, EFSA, and other regulatory agencies
Labeling Requirements: According to local regulations for non-hazardous, low-toxicity chemicals; observe labeling for proper usage and health advice
Other Regulations: No restrictions in most consumer or commercial products, but regular monitoring due to growing concern over trace paraben exposure in sensitive populations and potential allergenic effects in rare cases
West Ujimqin Banner, Xilingol League, Inner Mongolia, China
