Terazosin EP Impurity E

2,2-(1,4-Piperazinediyl)bis[6,7-dimethoxy-4-quinazolinamine] hydrochloride (1:1)|2,2'-(1,4-Piperazinediyl)bis[6,7-dimethoxy-4-quinazolinamine]|2,2'-(Piperazine-1,4-diyl)bis(6,7-diMethoxyquinazolin-4-amine)|CS-O-16590;|Terazosin EP Impurity E|Terazosin Impurity;2,2-(piperazine-1,4-diyl)bis(6,7-dimethoxyquinazolin-4-amine);|Terazosin USP Related Compound C ; Prazosin EP Impurity E ; 2,2'-(1,4-Piperazinediyl)bis[6,7-dimethoxy-4-quinazolinamine] ;