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分子式: C8H8O3
分子量: 152.15
中文名称: 对甲氧基苯甲酸
4-甲氧基苯甲酸
对茴香酸
英文名称: p-Methoxybenzoic acid
4-Anisic acid
4-methoxy-Benzoic acid
p-anisic acid
4-methoxybenzoic acid
性质描述: 无色针状晶体,密度 1.385 ,熔点 181-186℃ ,沸点 275℃ ,折射率 1.571-1.576 ,闪点185℃, 能溶于醇、醚和乙酸乙酯,稍溶于热水,20℃水中的溶解度为0.3g/L。
外观 白色针状结晶 白色粉末结晶
含量 ≥99.5% ≥99.0%
熔点 183~185℃ 181~183℃
干燥失重 ≤0.50% 0.50%
灼烧残渣 ≤0.10% /
用途: 作为医药中间体用于合成3-氨基-4-甲氧基苯甲酸,及生产对甲氧基苯甲酰氯等;也作为精细化工原料用于生产香料、化妆品以及参与多种有机合成。
Product Identification
【Product Name】Methyl anisate 对甲氧基苯甲酸甲酯
【Synonyms】4-(Methoxycarbonyl)anisole
【CAS】121-98-2
【Formula】C9H10O3
【Molecular Weight】166.17
【EINECS】204-513-2
【RTECS】BZ4925000
【RTECS Class】Natural Product; Primary Irritant
【Beilstein/Gmelin】2208571
【Beilstein Reference】4-10-00-00360
Physical and Chemical Properties
【Appearance】White powder.
【Solubility in water】Insoluble
【Melting Point】48
【Boiling Point】256
【Vapor Pressure】0.016 (25 C)
【Partition Coefficient】2.27
【Heat Of Vaporization】49.4 kJ/mol
【Heat Of Combustion】-4477 kJ/mol
First Aid Measures
【Ingestion】If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
【Inhalation】Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
【Skin】Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
【Eyes】Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Handling and Storage
【Storage】
Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.
【Handling】Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Hazards Identification
【Ingestion】May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
【Inhalation】May cause respiratory tract irritation.
【Skin】May cause skin irritation.
【Eyes】May cause eye irritation.
【Hazards】Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.
【EC Safety Phrase】S 22 24/25
【UN (DOT)】2319
Exposure Controls/Personal Protection
【Personal Protection】Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
【Respirators】Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Fire Fighting Measures
【Flash Point】
98
【Fire Fighting】Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
【Fire Potential】HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
Accidental Release Measures
【Small spills/leaks】Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.
Stability and Reactivity
【Stability】Stable under normal temperatures and pressures.
【Incompatibilities】Strong oxidizing agents.
【Decomposition】Irritating and toxic fumes and gases.
【Combustion Products】Fire may produce irritating, corrosive and/or toxic gases.
Transport Information
【UN Number】2319
【Hazard Class】3
【Packing Group】III