N-[[(3R)-5-Chloro-3,4-dihydro-8-hydroxy-3-methyl-1-oxo-1H-2-benzopyran-7-yl]carbonyl]-L-phenylalanine-13C6; (-)-N-[(5-Chloro-8-hydroxy-3-methyl-1-oxo-7-isochromanyl)carbonyl]-3-phenylalanine-13C6; (R)-N-[(5-Chloro-3,4-dihydro-8-hydroxy-3-methyl-1-oxo-1H-benzo[c]pyran-7-yl)carbonyl]-3-phenylalanine-13C6; 3R,14S-Ochratoxin A-13C6; NSC 201422-13C6; NSC 221991-13C6; Phe-OTA-13C6; Phenylalanine-ochratoxin A-13C6;,Ochratoxin A Stable Isotopes