Histamine diphosphate51-74-1100 % similar Histamine51-45-671 % similar Histamine dihydrochloride56-92-865 % similar Imidazolyl-4-ethanol872-82-247 % similar 4-Imidazolemethanol822-55-942 % similar 1H-Imidazole-5-acetic acid645-65-839 % similar 4-(Hydroxymethyl)imidazole hydrochloride32673-41-938 % similar D-Histidine351-50-838 % similar DL-Histidine4998-57-638 % similar Histidine71-00-138 % similar Carnosine305-84-038 % similar Beta-alanylhistidine9001-99-438 % similar Imidazoleacetic acid hydrochloride3251-69-236 % similar L-Histidine hydrochloride (1:?)1007-42-735 % similar D-Histidine hydrochloride6341-24-835 % similar L-Histidine monohydrochloride645-35-235 % similar DL-Histidine hydrochloride6459-59-235 % similar 4(5)-Cyanomethylimidazole18502-05-135 % similar L-Histidinol dihydrochloride1596-64-135 % similar D(+)-Histidinol dihydrochloride75614-84-535 % similar