N-Boc O-tert-Butyldimethylsilyl (4E, 8E)-Sphingadienine-C18-1-phosphate is an intermediate in the synthesis of (4E, 8E)-Sphingadienine-C18-1-phosphate (S680680), which is an analogue of (4E, 14Z)-Sphingadienine-C18 (S680630), a sphingoid base of sea cucumber cerebroside that may have cytotoxicity activity against human colon cancer cells. Molecular Formula: C29H58NO7PSi Solubility: Chloroform, Dichloromethane Molecular Weight: 591.83000000000004