title: Identification of the internal acetal 5-acetamido-2,7-anhydro-3,5-dideoxy-D-glycero-D-galacto-nonulopyranose.
mesh_terms: D002518:Ceramides; D002849:Chromatography, Gas; D002852:Chromatography, Ion Exchange; D005732:Gangliosides; D013058:Mass Spectrometry; D008722:Methods; D010084:Oxidation-Reduction; D010504:Periodic Acid; D011134:Polysaccharides; D012794:Sialic Acids / Q000032:analysis*
chemical_list: D002518:Ceramides; D005732:Gangliosides; D011134:Polysaccharides; D012794:Sialic Acids; D010504:Periodic Acid