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L-5,5-Dimethylthiazolidine-4-carboxylic acid72778-00-839 % similar trans-3-Hydroxy-L-proline4298-08-238 % similar (4S)-4-Cyclohexyl-L-proline103201-78-138 % similar (4R)-4-Fluoro-L-proline hcl60604-36-638 % similar D-Cystine349-46-238 % similar Cystine56-89-338 % similar 2-Azaniumyl-3-((2-azaniumyl-2-carboxylatoethyl)disulfanyl)propanoate923-32-038 % similar (S)-6-Oxo-2-piperidinecarboxylic acid34622-39-437 % similar N-Methyl-L-aspartic acid4226-18-037 % similar N-Methyl-D-aspartic acid6384-92-537 % similar (3R)-1,2,3,4-Tetrahydroisoquinoline-3-carboxylic acid103733-65-937 % similar 1,2,3,4-Tetrahydroisoquinoline-3-carboxylic acid67123-97-137 % similar (-)-1,2,3,4-Tetrahydroisoquinoline-3-carboxylic acid74163-81-837 % similar 3-Azetidinecarboxylic acid36476-78-537 % similar 1,4-Cyclohexanedicarboxylic acid1076-97-736 % similar (±)-trans-1,2-Cyclobutanedicarboxylic acid1124-13-636 % similar Cyclopropanecarboxylic acid1759-53-136 % similar 1,4-Cyclohexanedicarboxylic acid619-81-836 % similar trans-1,4-Cyclohexanedicarboxylic acid619-82-936 % similar 3,4-Dehydro-L-proline4043-88-335 % similar