制药试剂及其性状（Pharmaceutical reagents and their properties）.docVIP

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制药试剂及其性状（Pharmaceutical reagents and their properties）.doc

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制药试剂及其性状（Pharmaceutical reagents and their properties）

制药试剂及其性状（Pharmaceutical reagents and their properties） The breeding process Phenylacetic acid appearance : white flake crystal. 2878. Molecular formula : C8H8O2. Molecular weight: 136.15. Melting point (℃) : 76-78 Boiling point (℃) : 265.5 The aroma Sweet, sweet, fragrant, sweet, sour, sour and honey, but also like a cats turbidity. When thick, mainly show the animal turbidity, light is sweet smell. Relative density (water = 1) : 1.09 (77 ℃) solubility : soluble in water, soluble in ethanol, ether and ammonia. Health hazard : it can stimulate the eyes, skin, mucosa and upper respiratory tract. Inhalation, ingestion or absorption of the skin is harmful to the body. Environmental hazards : harmful to the environment and pollution to water and atmosphere. Combustion hazard : this product is combustible and irritating. Note: this chemical is included in the national category ii precursor chemicals. Illegal production, transportation, carrying and trading are contrary to the laws of the Peoples Republic of China. PKa = 4.28, benzoic acid pKa = 4.2 application Mainly used in the production of penicillin The total production of penicillin G was improved and used as raw material for the preparation of spices, pesticides and plant growth regulators. Phenylacetic acid is an important organic chemical raw material. Phenylacetic acid is a flake white crystal with plant fragrance. Industrial products often have a bad smell. Phenylacetic acid has the typical reaction of carboxyl, methylene hydrogen and benzene ring, producing many useful intermediates, which are widely used in medicine, pesticide, spices and other industries. In the pharmaceutical industry Mainly used in the manufacture of penicillin G salt, the second for phenobarbital, flapping meters ketone, amitriptyline, heart crestor, azole, chlorine, atropine, spasmolysis, law spirit, ring spray ester, cyproheptadine, and so on. In the pesticide industry It can be used to produce insecticide rice fungicide, fungicide benz