Crystallise it from H2O and Me2CO. The free base (see above) has m 113-114o from *C6H6/pet ether and is soluble in H2O and EtOH. [Fox & Gibas J Org Chem 18 994 1953, Beilstein 22 III/IV 551.]
IPRONIAZID PHOSPHATE Preparation Products And Raw materials