The molecule is an inositol phosphomannosylinositol phosphoceramide compound having a hexacosaonyl group attached to the ceramide nitrogen, with no hydroxylation at C-4 of the long-chain base, and hydroxylation at C-2 of the very-long-chain fatty acid. It derives from a Man-beta1-2-Ins-1-P-Cer(d20:0/2-OH-26:0).
[(2S,3R)-3-hydroxy-2-(2-hydroxyhexacosanoylamino)icosyl] [(1R,2R,3R,4R,5S,6R)-2,3,4,5-tetrahydroxy-6-[(3S,4S,5S,6R)-3,4,5-trihydroxy-6-[[hydroxy-[(2R,3S,5R,6R)-2,3,4,5,6-pentahydroxycyclohexyl]oxyphosphoryl]oxymethyl]oxan-2-yl]oxycyclohexyl] hydrogen phosphate