4-Aminopiperidine dihydrochloride35621-01-331 % similar 4-Amino-1-methylpiperidine41838-46-431 % similar 4,4-Difluorocyclohexanamine458566-84-231 % similar Thiomorpholine 1,1-dioxide hydrochloride59801-62-631 % similar 1,3-Cyclohexanediamine3385-21-530 % similar 4-(3-Aminopropyl)thiomorpholine 1,1-dioxide90000-25-230 % similar