5020 Galactosylsphingosine Galactosylsphingosine is an intermediate in the biosynthesis of cerebrosides. It is formed by reaction of sphingosine with UDP-galactose and then itself reacts with fatty acid-Coenzyme A to form the cerebroside. 2238-90-6 22833541 C24H47NO7 White powder. No indication of carcinogenicity to humans (not listed by IARC). Chronically high levels of psychosine are associated with Globoid Cell Leukodystrophy. 2014-10-02T18:58:05Z 2016-11-09T01:09:14Z C01747 16874 true CCCCCCCCCCCCC\C=C\C(O)C(N)COC1O[C@H](CO)[C@H](O)[C@@H](O)[C@H]1O C24H47NO7 InChI=1S/C24H47NO7/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-19(27)18(25)17-31-24-23(30)22(29)21(28)20(16-26)32-24/h14-15,18-24,26-30H,2-13,16-17,25H2,1H3/b15-14+/t18?,19?,20-,21+,22-,23-,24?/m1/s1 HHJTWTPUPVQKNA-LUIGAKQRSA-N 461.6325 461.335252863 Solid HMDB00648 17215986 CHEM003918 (3R,4R,5R,6R)-2-{[(4E)-2-amino-3-hydroxyoctadec-4-en-1-yl]oxy}-6-(hydroxymethyl)oxane-3,4,5-triol