1,4-Bis(glutathion-S-yl)-1,2,3,4-tetrachlorobuta-1,3-diene 117707-49-0 BGTCB Glycine, 2,2'-(1,2,3,4-tetrachloro-1,3-butadiene-1,4-diyl)bis(L-gamma-glutamyl-L-cysteinyl-, (E,E)-