Imidazoleacetic acid hydrochloride3251-69-2100 % similar 1H-Imidazole-5-acetic acid645-65-890 % similar L-Histidine hydrochloride (1:?)1007-42-754 % similar D-Histidine hydrochloride6341-24-854 % similar DL-Histidine hydrochloride6459-59-254 % similar 4-(Hydroxymethyl)imidazole hydrochloride32673-41-953 % similar Dl-histidine monohydrochloride monohydrate123333-71-150 % similar L-Histidine hydrochloride monohydrate5934-29-250 % similar 4-Pyridylacetic acid hydrochloride6622-91-949 % similar Histidylglycine2578-58-748 % similar 3-Pyridylacetic acid hydrochloride6419-36-948 % similar (2S)-2-Amino-3-(1H-imidazol-4-yl)propanamide dihydrochloride71666-95-047 % similar D-Histidine351-50-846 % similar Dl-histidine4998-57-646 % similar Histidine71-00-146 % similar Histamine dihydrochloride56-92-846 % similar 1H-Imidazole-5-methanol822-55-944 % similar Histidine methyl ester dihydrochloride7389-87-943 % similar L-Histidinol dihydrochloride1596-64-143 % similar 2-Pyridylacetic acid hydrochloride16179-97-841 % similar