Histidine methyl ester dihydrochloride7389-87-9100 % similar D-Histidine hydrochloride6341-24-861 % similar DL-Histidine hydrochloride6459-59-261 % similar Dl-histidine monohydrochloride monohydrate123333-71-157 % similar L-Histidine hydrochloride monohydrate5934-29-257 % similar Methyl (R)-phenylalaninate hydrochloride13033-84-656 % similar (±)-Phenylalanine methyl ester hydrochloride5619-07-856 % similar Methyl L-phenylalaninate hydrochloride7524-50-756 % similar D-Histidine351-50-855 % similar Dl-histidine4998-57-655 % similar Histidine71-00-155 % similar (2S)-2-Amino-3-(1H-imidazol-4-yl)propanamide dihydrochloride71666-95-054 % similar DL-(p-Chlorophenyl)alanine methyl ester hydrochloride14173-40-152 % similar Methyl L-tyrosinate hydrochloride3417-91-252 % similar Methyl D-tyrosinate hydrochloride3728-20-952 % similar (R)-Tryptophan methyl ester monohydrochloride14907-27-852 % similar DL-Methyl tryptophanate monohydrochloride5619-09-052 % similar Tryptophan methyl ester hydrochloride7524-52-952 % similar L-Dopa methyl ester hydrochloride1421-65-449 % similar Phenylalanine methyl ester2577-90-449 % similar