1-Piperazinecarboxylic acid, 4-(4-amino-6,7,8-trimethoxy-2-quinazolinyl)-, 2-hydroxy-2-methylpropyl ester, monohydrochloride 2-Hydroxy-2-methylpropyl 4-(4-amino-6,7,8-trimethoxyquinazolin-2-yl)piperazine-1-carboxylate monohydrochloride 35795-16-5 35795-17-6 EINECS 252-733-2 NSC 355084 Trimazosin hydrochloride anhydrous