(S)-beta-Amino-1H-imidazole-4-propanol dihydrochloride 1596-64-1 1H-Imidazole-4-propanol, beta-amino-, dihydrochloride, (S)- (9CI) EINECS 216-482-2 Imidazole-4-propanol, beta-amino-, dihydrochloride L-Histidinol dihydrochloride beta-Aminoimidazole-4-propanol dihydrochloride