© 2026 Nanjing Finechem Holdings Co., Ltd,
All Right Reserved
Chemical Name: Methoxyphenylacetic Acid
Common Synonyms: 2-Methoxyphenylacetic acid, o-Anisylacetic acid
CAS Number: 2243-62-1
Appearance: White to off-white crystalline powder, faint aromatic odor
Intended Use: Often shows up in lab settings, research, pharmaceutical intermediates, and even specialty chemical syntheses. Mishandling gets people in trouble fast—so every professional using it must know its identity, typical appearance, and what settings it pops up in.
Main Hazards: Skin and eye irritation on contact, possible respiratory discomfort if dust is inhaled, ingestion can upset the stomach
Signal Word: Warning
Pictograms: Exclamation mark for irritant
Routes of Exposure: Skin, eyes, inhalation, ingestion
Long-Term Risks: No strong evidence for chronic risks, but any uncertain chemical shouldn’t be underestimated. Wearing gloves and masks keeps the risk down.
Main Ingredient: Methoxyphenylacetic Acid, concentration 98-100%
Impurities: May contain trace organic impurities, rarely above 1–2%. Since minute impurities sometimes trigger allergic reactions in sensitive folks, notice purity levels on supply documentation.
Eye Contact: Flush eyes with lots of clean water for at least 15 minutes, call medical services if stinging or redness remain
Skin Contact: Wash skin with soap and water, remove contaminated clothing right away
Inhalation: Move to fresh air, monitor breathing, get medical help if irritation lingers
Ingestion: Rinse mouth, drink water, skip forced vomiting
Immediate Medical Help: Strong irritation, continued symptoms, or accidental large ingestion should always lead to professional medical help.
Suitable Extinguishers: Carbon dioxide, dry chemical powder, foam
Hazards Under Fire: Burning acid may give off toxic fumes including carbon oxides and potentially irritating aromatic compounds.
Special Equipment: Respiratory protection and chemical-resistant clothing recommended for responders.
Common Firefighting Approach: Attack small spills with dry media; for big fires in storage facilities, keep away unless properly trained.
Spill Control: Dust masks or respirators, gloves, and eye protection all matter for clean-up
Containment: Sweep or scoop up material; place in sealed, labeled containers
Wash Area: Wipe down surface with plenty of water afterward
Environmental Impact: Prevent runoff into drains or waterways, since chemical load can build up and stress local aquatic animals and water quality.
Handling Rules: Minimize dust generation, work in ventilated spots, keep chemical off skin and clothes, wear the right protective equipment
Storage: Store in tightly sealed containers, cool and dry location, away from reactive acids or bases; label containers clearly
Incompatibilities: Strong oxidizers, strong bases or acids can set off unwanted reactions.
Container Integrity: Switch out degraded containers to avoid accidental leaks.
Ventilation: Fume hoods or local exhaust fans cut down airborne dust
Personal Protection: Standard lab coats, nitrile or vinyl gloves, chemical splash goggles, and respiratory protection in dusty settings
Work Practices: Wash hands before food or touching face, remove contaminated clothes for washing, don’t eat or drink near work area.
PPE Overkill: Overdressing for small, contained tasks might slow workflow without adding real safety—match protection to risk.
Physical State: Crystalline solid or powder
Color: White or off-white shade
Odor: Mild, almost sweet or aromatic
Melting Point: Just under 100°C for pure product, check batch specs
Solubility: Slightly soluble in water, mixes better with alcohols and organic solvents
Boiling Point: Above 200°C
Vapor Pressure: Low, barely noticeable at room conditions
Other Key Traits: Not flammable itself, but dust clouds can ignite if strong ignition source hits concentrated powder.
Stability: Stays stable under ordinary conditions, as long as air and moisture are kept out
Dangerous Reactions: Strong acids or bases will eat into the molecule, oxidizers can trigger unsafe heat
Decomposition Products: May form carbon oxides or methoxy-aromatic byproducts at high temperatures
Special Cautions: Don’t let dust settle on hot surfaces or in electrical panels—fires in warehouses often start just this way.
Routes of Exposure: Eyes, skin, respiratory, oral
Short-Term Effects: Eyes sting, skin gets red or itchy, throat scratchy if inhaled, upset stomach if swallowed
Long-Term Risks: No major chronic toxicity reports found for ordinary quantities, but cascading exposure might lead to sensitization or allergic reactions in some users
Mutagenicity/Carcinogenicity: No standard data supporting cancer or genetic mutation risks, but carelessness opens the door to unnecessary chemical contact.
Aquatic Risks: Solubility low, but aquatic life can still take a hit if big spills run off
Bioaccumulation: Not likely, yet continual releases can stress plants and small aquatic organisms
General Environmental Risk: Disposal down ordinary city drains sends the wrong signal; excessive discharge disturbs water balance and soil microbes
Responsible Action: Use only the minimum amount, trap excess, and dispose of solid and liquid waste using chemical waste services.
Preferred Disposal: Incineration with chemical waste facilities
Waste Treatment: Collect in closed, labeled containers, don’t mix with general lab trash
Sewer Disposal: Shouldn’t happen, since combined sewage treatment rarely neutralizes specialty organics
Advice for Labs: Partner with trusted waste contractors, keep detailed logs, and audit disposals annually to catch any leaks.
Shipping Regulations: Not flagged as a major transport hazard, but still label for chemical contents
Packing: Leakproof, puncture-resistant packaging crucial, especially for long shipping or customs checks
Spillage in Transit: Immediate cleanup, following the same dust-avoidance and PPE guidelines as onsite spills
Documentation: Accurate, complete paperwork saves trouble at border crossings or industry audits.
Status: Not classified as hazardous by most international bodies, but every region’s chemical laws show small differences
Labeling: Minimum required labels: chemical name, hazard class (irritant), manufacturer’s name if available, and emergency statements
Restrictions: Some countries set maximum total allowed for import/export, especially due to potential use in specialty syntheses
Public Health Guidance: Local environmental and workplace safety boards set limits for storage, especially in universities or contract labs.
