the method is applicable to the determination of the following thioethers : 2-hydroxyethylmercapturic acid ( n-acetyl-s-2-hydroxyethyl-l-cysteine ; hma ) , carboxymethylmercapturic acid ( n-acetyl-s-carboxymethyl-l-cysteine ; cama ) and 2-cyanoethylmercapturic acid ( n-acetyl-s-2-cyanoethyl-l-cysteine ; cyma ) , and the corresponding cysteine conjugates , s-2-hydroxyethyl-l-cysteine ( hcys ) , s-2-carboxymethyl-l-cysteine ( cacys ) and s-2-cyanoethyl-l-cysteine ( cycys ) .
C0001047
acetyl
C0010654
l-cysteine