Synonyms: Cysteine,N-D-pantothenoyl-, 4-(dihydrogen phosphate), L- (6CI,8CI); L-Cysteine,(2R)-2-hydroxy-3,3-dimethyl-4-(phosphonooxy)butanoyl-b-alanyl- (9CI); L-Cysteine,N-[N-[2-hydroxy-3,3-dimethyl-1-oxo-4-(phosphonooxy)butyl]-b-alanyl]-, (R)-;4'-Phosphopantothenoyl-L-cysteine; 4'-Phosphopantothenoylcysteine;Pantothenoylcysteine 4'-phosphate