4-dichloromethanesulfonylamino-2,3-didehydro-2,3,4,5-tetradeoxyglycerogalacto-2-nonulopyranosic acid
4-dichloromethanesulfonylamino-2,3-didehydro-2,3,4,5-tetradeoxyglycerogalacto-2-nonulopyranosic acid