Azetidine-2-carboxylic acid-d4

Azetidine-2-carboxylic acid-d4 (D, L-Azetidine-2-carboxylic acid-d4) is the deuterium labeled Azetidine-2-carboxylic acid (HY-75308) . Azetidine-2-carboxylic acid is a non proteinogenic amino acid homologue of proline. Found in common beets. Azetidine-2-carboxylic acid can be misincorporated into proteins in place of proline in many species, including humans. Toxic and teratogenic agent[1][2].