Polaprezinc107667-60-7100 % similar Carnosine305-84-046 % similar Beta-alanylhistidine9001-99-446 % similar D-Histidine351-50-842 % similar DL-Histidine4998-57-642 % similar Histidine71-00-142 % similar Prezatide copper89030-95-541 % similar L-Histidine hydrochloride (1:?)1007-42-739 % similar D-Histidine hydrochloride6341-24-839 % similar L-Histidine monohydrochloride645-35-239 % similar DL-Histidine hydrochloride6459-59-239 % similar Histamine51-45-638 % similar Dl-histidine monohydrochloride monohydrate123333-71-137 % similar Histidine monohydrochloride monohydrate5934-29-237 % similar Prezatide copper acetate130120-57-937 % similar Histamine dihydrochloride56-92-835 % similar Copper peptide ghk-cu49557-75-735 % similar Histidine methyl ester dihydrochloride7389-87-935 % similar N-Acetylhistidine monohydrate39145-52-335 % similar N-Acetyl-L-histidine2497-02-134 % similar