Doxazosin EP Impurity B (HCl)

Chemical Name: USP Doxazosin Related Compound A ; N-(1,4-Benzodioxane-2-carbonyl)piperazine hydrochloride ; [(2RS)-2,3-dihydro-1,4-benzodioxin-2-yl](piperazin-1-yl)methanone

Synonym: Amoxapine Methylformate ; methyl 4-(2-chlorodibenzo[b,f][1,4]oxazepin-11-yl)piperazine-1-carboxylate

Smile: O=C(N1CCNCC1)C2OC(C=CC=C3)=C3OC2.Cl