Lower price Clarithromycin CAS NO.81103-11-9

White crystalline powder or colorless acicular crystal, odourless, taste bitter. Easily soluble in chloroform and acetone, slightly soluble in ethanol, ether and methanol, almost insoluble in water. From the chloroform - isopropyl ether (2-1) and colorless acicular crystal, melting point of 217 ~ 220 ℃ (decomposition); Crystal or from ethanol, the melting point of 222 ~ 225 ℃. [alpha] (20, D) - 90. 4 °, (c = l, chloroform). The UV absorption maximum (chloroform); 288 nm (e27. 9).;