title: Identification by gas-liquid chromatography-mass spectrometry of 4-O-acetyl-9-O-lactyl-N-acetyl-neuraminic acid, a new sialic acid from horse submandibular gland.
abstract: The novel sialic acid 4-O-acetyl-9-O-lactyl-N-acetylneuraminic acid has been identified as a constituent of horse submandibular gland glycoproteins in addition to the already known equine sialic acids, N-acetylneuraminic acid, 4-O-acetyl-N-acetylneuraminic acid, 9-O-acetyl-N-acetylneuraminic acid, 4,9-di-O-acetyl-N-acetylneuraminic acid, N-glycolylneuraminic acid, 4-O-acetyl-N-glycolylneuraminic acid and 9-O-acetyl-N-glycolylneuraminic acid. The structure has been established by combined gas-liquid chromatography-mass spectrometry.
mesh_terms: D000818:Animals; D008401:Gas Chromatography-Mass Spectrometry; D006736:Horses; D012794:Sialic Acids / Q000302:isolation & purification*; D013363:Submandibular Gland / Q000032:analysis*
chemical_list: C026065:4-O-acetyl-9-O-lactyl-N-acetylneuraminic acid; D012794:Sialic Acids