2,2′-Azobis[2-(2-imidazolin-2-yl)propane] dihydrochloride27776-21-2100 % similar 2-(Chloromethyl)-4,5-dihydro-1H-imidazole hydrochloride13338-49-338 % similar Lysidine (chemical)534-26-935 % similar 2,2'-Azobis(2-amidinopropane) dihydrochloride2997-92-435 % similar Xylometazoline hydrochloride1218-35-535 % similar Tolazoline hydrochloride59-97-233 % similar 2,2′-Azobis[2-methyl-N-(2-hydroxyethyl)propionamide]61551-69-732 % similar 2-Imidazolidinone120-93-432 % similar Ethylene thiourea96-45-731 % similar Clonidine hydrochloride4205-91-830 % similar