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Product Name: P-Anisaldehyde
Chemical Name: 4-Methoxybenzaldehyde
Synonyms: Para-Anisaldehyde; 4-Anisaldehyde
CAS Number: 123-11-5
Recommended Use: Laboratory reagents, flavor and fragrance industry, synthesis of pharmaceuticals
Manufacturer Contact: Detailed emergency numbers provided by supplier on product label
Emergency Overview: Liquid, strong aromatic odor, clear to slightly yellow
Classification: Eye Irritation Category 2, Skin Irritation Category 2
GHS Label Elements: Exclamation Mark
Signal Word: Warning
Hazard Statements: Causes moderate eye irritation, mild skin irritation, may cause allergic skin reaction, harmful to aquatic life
Precautionary Statements: Wear protective gloves, avoid contact with eyes and skin, wash hands thoroughly after handling, store away from foodstuffs
Potential Symptoms: Redness, irritation of skin or eyes, coughing if inhaled
Chemical Formula: C8H8O2
Ingredient: 4-Methoxybenzaldehyde
Concentration: at least 98% (by weight)
Impurities: Minimal; other trace aromatics or related aldehydes possible depending on production process
Other Components: None contributing to hazard classification
Inhalation: Move person to fresh air. Seek medical attention if symptoms persist.
Skin Contact: Remove contaminated clothing. Rinse thoroughly with soap and water. Call for medical help for irritation.
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes. Hold eyelids open. Seek medical attention immediately if irritation persists.
Ingestion: Rinse mouth with water. Do not induce vomiting unless directed by medical personnel. Consult a physician immediately.
Most Important Symptoms: Burning sensation, redness, coughing, short-term dizziness
Notes for Physician: Treat symptomatically and supportively, monitor airway
Suitable Extinguishing Media: Water spray, dry chemical, alcohol-resistant foam, carbon dioxide
Unsuitable Extinguishing Media: Direct water stream may scatter material
Specific Hazards: Combustible. May produce carbon monoxide, carbon dioxide, and aromatic fumes when burned.
Protective Equipment: Firefighters wear full protective clothing including self-contained breathing apparatus.
Precautions: Cool containers exposed to fire with water. Avoid inhalation of smoke and decomposition products.
Personal Precautions: Use appropriate personal protection—chemical-resistant gloves, goggles, suitable clothing. Ventilate area.
Environmental Precautions: Prevent from entering drains, surface water, ground water.
Methods for Containment: Absorb with inert material (sand, vermiculite). Collect for disposal.
Cleanup Procedures: Use non-sparking tools. Wash spill area with soap and water after collection. Dispose of as hazardous waste according to local legislation.
Handling: Avoid skin and eye contact. Use with adequate ventilation. Do not eat, drink, or smoke during use. Use proper grounding and bonding when transferring.
Storage: Keep container tightly closed in a dry, cool, well-ventilated area. Protect from heat, sparks, open flames. Store away from oxidizers and acids.
Incompatible Materials: Oxidizing agents, strong acids
Advice on General Occupational Hygiene: Practice regular hand washing and avoid direct contact with material outside designated work areas.
Occupational Exposure Limits: No established limits for p-Anisaldehyde; minimize exposure according to good industrial hygiene practices
Engineering Controls: Local exhaust ventilation, safety shower and eye wash stations
Personal Protective Equipment: Chemical splash goggles, gloves resistant to chemicals (nitrile recommended), protective lab coat
Respiratory Protection: Use an approved respirator if ventilation is not adequate or if exposure limits may be exceeded
Environmental Exposure Controls: Prevent release to the environment by using spill containment and closed-system handling where possible
Appearance: Clear, pale yellow liquid
Odor: Strong, sweet, aromatic (almond-like scent)
pH: Not applicable (neutral material)
Melting Point: 2°C
Boiling Point: 248°C
Flash Point: 113°C (closed cup)
Evaporation Rate: Not available
Flammability: Combustible at elevated temperatures
Vapor Pressure: 0.04 mmHg at 25°C
Vapor Density: 4.3 (air = 1)
Solubility: Slightly soluble in water; soluble in alcohol, ether
Partition Coefficient (Log Kow): 1.7
Viscosity: Not determined
Chemical Stability: Stable under normal storage and handling conditions
Reactivity: Not prone to hazardous polymerization
Conditions to Avoid: High heat, open flames, strong oxidants
Incompatible Materials: Strong acids, oxidizers
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, possibly irritating organic vapors
Likely Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Toxicity: LD50 (oral, rat): 3200 mg/kg
Inhalation: May cause mild respiratory irritation, coughing
Skin Contact: Slight irritant; prolonged exposure can cause redness or dermatitis
Eye Contact: Moderate irritant; may cause redness, watering
Sensitization: Has potential to cause allergic skin reactions
Chronic Effects: No long-term data available; animal tests suggest low chronic toxicity
Carcinogenicity, Mutagenicity, Reproductive Toxicity: Not classified as carcinogen or mutagen; no reproductive toxicity data noted
Medical Conditions Aggravated by Exposure: Pre-existing skin, eye, or respiratory conditions
Acute Aquatic Toxicity: Harmful to aquatic organisms; LC50 (fish, 96 hrs): Range of 21-62 mg/L
Persistence and Degradability: Expected to be biodegradable, but high concentrations may cause oxygen depletion in water
Bioaccumulative Potential: Low to moderate based on partition coefficient
Mobility in Soil: Product floats on water, may evaporate or leach slowly
Other Effects: Excessive spills risk contamination of waterways and disruption of aquatic ecosystems
Waste Treatment Methods: Dispose according to local regulations in a facility accredited for chemical waste
Product Disposal: Do not release into drains or environment; incineration recommended under controlled conditions
Contaminated Packaging: Rinse containers thoroughly, dispose as hazardous waste
Precautions: Do not mix with incompatible materials. Handle with gloves and avoid inhaling fumes during discarding or incineration
UN Number: Not regulated for most forms of ground and air transport; check current local and international regulations
Proper Shipping Name: P-Anisaldehyde, chemical product
Hazard Class: Not classified as dangerous under most shipping regulations
Packing Group: Usually III (for minor irritants and low hazard), verify with supporting documentation
Special Precautions: Ensure containers are securely closed, protected from damage and temperature extremes
Labeling Requirements: GHS-compliant pictograms, signal word “Warning”, hazard and precautionary statements
TSCA Status (US): Listed
REACH Status (EU): Registered; not classified as substance of very high concern
OSHA: Considered hazardous; requires Safety Data Sheet and appropriate workplace labeling
SARA Title III: Not listed
WHMIS (Canada): D2B Toxic Material Causing Other Toxic Effects
Other Country-Specific Info: Product regulation varies by jurisdiction; always check national chemical inventory and transport requirements before use or shipping
