Djenkolic acid498-59-9100 % similar Dl-lanthionine3183-08-283 % similar D-Cystine349-46-269 % similar Cystine923-32-069 % similar S-(Carboxymethyl)cysteine2387-59-967 % similar Carbocisteine638-23-367 % similar Fudosteine13189-98-563 % similar S-Allylcysteine21593-77-163 % similar S-Methylcysteine1187-84-462 % similar Cystine dihydrochloride30925-07-662 % similar L-Cystine, hydrochloride (1:?)34760-60-662 % similar S-Benzyl-L-cysteine3054-01-157 % similar D-Serine312-84-554 % similar 2,3-Diaminopropionic acid4033-39-054 % similar 2,3-Diaminopropionic acid515-94-654 % similar Serine56-45-154 % similar Diaminopimelic acid583-93-754 % similar Homocystine462-10-253 % similar Homocystine626-72-253 % similar Dl-homocystine870-93-953 % similar