The molecule is a mannosylinositol phosphorylceramide(1-) having a tetracosanoyl group attached to the ceramide nitrogen, with hydroxylation at C-4 of the long-chain base. It is a conjugate base of a Man-beta1-2-Ins-1-P-Cer(t18:0/24:0).
[(2S,3S)-3,4-dihydroxy-2-(tetracosanoylamino)octadecyl] [(1R,2R,3R,4R,5S,6R)-2,3,4,5-tetrahydroxy-6-[(2S,3S,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxycyclohexyl] phosphate