37180-63-5 Dithiothreitol tetraacetate Dtt-Ac Ethanethioic acid, S,S'-(2,3-bis(acetyloxy)-1,4-butanediyl) ester, (R*,S*)- Ethanethioic acid, S,S'-(2,3-bis(acetyloxy)-1,4-butanediyl) ester, (theta,S)-