70843-11-7

Terazosin-004-xHCl Terazosin Impurity4 2-piperazine-4-amino-6,7-dimethoxyquinazoline Hydrochloride 6,7-dimethoxy-2-piperazin-1-ylquinazolin-4-amine hydrochloride 6,7-Dimethoxy-N-(piperazin-1-yl)quinazolin-2-amine hydrochloride