Synonyms: (2S,4S,5R,6R)-5-acetamido-2-[(2S,3R,4S,5S,6R)-2-[(2R,3S,4R,5R,6S)-5-ac etamido-4-hydroxy-2-(hydroxymethyl)-6-[[(2R,3R,4S,5R,6R)-3,4,5-trihydr oxy-6-[(2R,3S,4S,5R,6S)-5-hydroxy-2-(hydroxymethyl)-4-[(2S,3R,4S,5R,6R )-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-6-[(2R,3R,4S,5R,6R)- 4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-oxan-3-yl]oxy-oxan-2-y l]methoxy]oxan-3-yl]oxy-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-4 -hydroxy-6-[(1S,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid;capsular polysaccharide, streptoccal group B type V