The scheme outlines the major metabolites in the GSH conjugation pathway of trichloroethylene (TRI) metabolism. Chemicals that are measured or detected in this study are surrounded by a box and those that are chemically reactive and unstable are shown within brackets. Other abbreviations: β-Lyase; cysteine conjugate β-lyase; DAc’ase, deacetylase; FMO, flavin-containing monooxygenase; DCVC, S-(1,2-dichlorovinyl)-l-cysteine; DCVCSO, S-(1,2- dichlorovinyl)- l-cysteine sulfoxide; DCVG, S-(1,2-dichlorovinyl)glutathione; DP, dipeptidase; GGT, γ-glutamyltransferase; NAcDCVC, N-acetyl-S-(1,2-dichlorovinyl)- l-cysteine.