Lofexidine31036-80-3100 % similar Lofexidine hydrochloride21498-08-892 % similar Clonidine4205-90-743 % similar Clonidine hydrochloride4205-91-840 % similar (±)-Tetrahydrozoline84-22-036 % similar 2-(2-Chlorophenoxy)propionic acid25140-86-734 % similar Apraclonidine66711-21-534 % similar Tetrahydrozoline hydrochloride522-48-534 % similar 2,6-Dichloroanisole1984-65-233 % similar Apraclonidine hydrochloride73218-79-832 % similar 2-Phenylimidazoline936-49-232 % similar Phentolamine50-60-231 % similar Tolazoline59-98-330 % similar