龙胆酸

龙胆酸
Benzoic acid
化学名：2,5-二羟基苯甲酸
CASNo：490-79-9
分子式：C7H6O4
分子量：154.12
同义词: 5-羟基水杨酸;氢醌羧酸;
英文名称: 2,5-Dihydroxybenzoic acid ；Benzoic acid
化学性质  白色针状结晶。熔点204.5-205℃。溶于水、乙醇和乙醚，
难溶于氯仿、苯和二硫化碳。在150℃以上长时间加热则分解为二氧化碳 和氢醌，
在空气中不稳定。遇三氯化铁呈蓝色。 
用途  龙胆酸本身是一种解热镇痛药，也用作医药中间体 
包装：25公斤
Benzoic acid
Chemical name: 2,5 - dihydroxybenzoic acid
CASNo :490-79-9
Molecular Formula: C7H6O4
MW: 154.12
Synonyms: 5 - hydroxy acid; hydroquinone carboxylic acid;
English name: 2,5-Dihydroxybenzoic acid; Benzoic acid
Chemical properties of white needle crystal. Melting point 
204.5-205 ℃. Soluble in water, ethanol and ether, insoluble
 in chloroform, benzene and carbon disulfide. Heated above 
150 ℃ for a long time is broken down into carbon dioxide and
 hydroquinone, in the air unstable. Case of ferric chloride 
was blue.Gentisate use itself is a anti-inflammatory drugs, also used
as pharmaceutical intermediates
Packing: 25kg cardboard drum