in melanotic cells , gangliosides were shown to be composed of both hematosides containing n-acetylneuraminic acid ( neuac-hematoside ) and n-glycolylneuraminic acid ( neugc-hematoside ) as determined by thin-layer chromatography , gas chromatography-mass spectrometry and the use of anti-neugc-hematoside antiserum .
C0017082
gangliosides
C0016897
hematoside