1-acetyl-trans-4-hydroxy-L-proline, L-Proline, 1-acetyl-4-hydroxy-, trans-, (2S,4R)-1-acetyl-4-hydroxy-2-pyrrolidinecarboxylic acid, trans-l-prolin, N-Acetyl-L-hydroxyproline, Hyp4001Ac-Hyp-Oh, CO-61, (2S,4R)-N-acetyl-4-hydroxyproline, AC-HYP-OH, (2S,4R)-1-acetyl-4-hydroxypyrrolidine-2-carboxylic acid, Ac-L-Hyp-OH, Jonctum, AC-HYDROXYPROLINE, N-AC-L-HYP, N-Acetyl-trans-4-hydroxy-L-proline, AHP-200