2,5-DIHYDRO-1H-PYRROLE-2-CARBOXYLIC ACID, 3,4-Dedihydroproline, 2,5-dihydro-pyrrole-2-carboxylic acid, (+/-)-3-PYRROLINE-2-CARBOXYLIC ACID, 3,4-Dehydro-DL-prolin, 3,4-Dedihydro-DL-proline, D,L-3,4-dehydroproline, H-3,4-DEHYDRO-DL-PRO-OH, H-DL-DELTAPRO-OH, R,S-3,4-dehydroproline, rac-(2R*)-3-Pyrroline-2-carboxylic acid, 3,4-DIDEHYDRO-DL-PROLINE, H-DL-PRO(3,4-DEHYDRO)-OH, 3,4-dehydro-D,L-proline, 3,4-Dehydro-DL-proline