4-Hydroxybenzoic acid

4-Hydroxybenzoic acid is an advanced pharmaceutical intermediate, offered with CAS number 99-96-7. Speranza Chemical Co., Ltd. produces this compound itself, offering it at chemical grade. The listing notes that it is soluble in ethanol, ether and acetone but only slightly soluble in water and chloroform, with an oral LD50 of 2200 mg/kg in mice and noted by the supplier as mildly irritating. Sold into North America, Central/South America, Western Europe, Eastern Europe, Australasia, Asia, the Middle East, and Africa, it is produced to multiple recognized pharmacopeial standards (ChP, USP, BP, EP, JP, In-house Standards, IP, Ph. Int).