купить 99.87% Лабораторные испытания чистоты бензокаина гидрохлорида (Лабораторные испытания чистоты бензокаина гидрохлорида) Powder Raw Local Anesthetic Material With Discreet Shipping Fast Delivery Benzocaine Hydrochloride Powder Specification Test Items Specification Test Results Appearance White crystals or a white crystalline powder Conform Identification ABE. It appears positive reaction Melting point 154degree~158degree 154degree~157degree Acidity PH 5.0~6.5 PH=5.9 Appearance of solution Clear and colourless Conform Loss on …