5-acetamido-2-(4-N-5-dimethylaminonaphthalene-1-sulfonyl-2-difluoromethylphenyl)-3,5-dideoxy-D-glycero-alhpa-D-galacto-2-nonulopyranosonic acid
5-acetamido-2-(4-n-5-dimethylaminonaphthalene-1-sulfonyl-2-difluoromethylphenyl)-3,5-dideoxy-d-glycero-alhpa-d-galacto-2-nonulopyranosonic acid