N-[(S)-5,6,7,9-Tetrahydro-1,2-dimethoxy-10-(methylthio)-9-oxo-3-[(2,3,4,6-tetra- O-acetyl- β-D-glucopyranSyl)oxy]benzo[a]heptalen-7-yl]acetamide; S)-N-[5,6,7,9-tetrahydro-1,2-dimethoxy-10-(methylthio)-9-oxo-3-[(2,3,4,6-tetra-O-acetyl- β-D-glucopyranSyl)oxy]benzo[a]heptalen-7-yl]acetamide; ThiocolchicSide Tetraacetate; Tetra-O-acetylthiocolchicSide