3,4,5,6-tetrahydropyridine-2-carboxylic acid 2756-89-0 1-P-2-CA 2-Pyridinecarboxylic acid, 3,4,5,6-tetrahydro- 1,2-didehydropiperidine-2-carboxylate 2,3,4,5-tetrahydropyridine-2-carboxylate Delta1-piperideine-2-carboxylate delta(1)-piperideine-2-carboxylate C01258 C04092 1-piperideine-2-carboxylic acid CHEBI:30912 Delta(1)-piperidine-2-carboxylic acid