Histamine51-45-6100 % similar Histamine dihydrochloride56-92-888 % similar Histamine diphosphate51-74-171 % similar Imidazolyl-4-ethanol872-82-257 % similar 4-Imidazolemethanol822-55-950 % similar 4(5)-Cyanomethylimidazole18502-05-145 % similar 4-(Hydroxymethyl)imidazole hydrochloride32673-41-945 % similar 1H-Imidazole-5-acetic acid645-65-841 % similar L-Histidinol dihydrochloride1596-64-139 % similar D-Histidine351-50-839 % similar DL-Histidine4998-57-639 % similar Histidine71-00-139 % similar D(+)-Histidinol dihydrochloride75614-84-539 % similar Carnosine305-84-039 % similar Beta-alanylhistidine9001-99-439 % similar 4-Pyridineethanamine13258-63-438 % similar Imidazoleacetic acid hydrochloride3251-69-238 % similar Polaprezinc107667-60-738 % similar L-Histidine hydrochloride (1:?)1007-42-737 % similar D-Histidine hydrochloride6341-24-837 % similar