Chemical Name: 4-[8-Amino-3-[1-oxo-4-[(1-oxo-2-butyn-1-yl)amino]butyl]imidazo[1,5-a]pyrazin-1-yl]-N-2-pyridinyl-benzamide
Synonym: Doxazosin USP RC E ; 2,4-Dichloro-6,7-dimethoxyquinazoline
Smile: O=C(NC1=NC=CC=C1)C2=CC=C(C3=C4C(N)=NC=CN4C(C(CCCNC(C#CC)=O)=O)=N3)C=C2