The molecule is an inositol phosphomannosylinositol phosphophytoceramide(2-) having a tetracosanoyl group attached to the ceramide nitrogen, hydroxylation at C-4 of the long-chain base, and no additional hydroxylation of the very-long-chain fatty acid. It is a conjugate base of an Ins-1-P-6-Man-beta1-2-Ins-1-P-Cer(t18:0/24:0).
[(2R,3S,4S,5S,6S)-6-[(1R,2R,3R,4R,5R,6S)-2-[[(2S,3S)-3,4-dihydroxy-2-(tetracosanoylamino)octadecoxy]-oxidophosphoryl]oxy-3,4,5,6-tetrahydroxycyclohexyl]oxy-3,4,5-trihydroxyoxan-2-yl]methyl [(2R,3R,5S,6R)-2,3,4,5,6-pentahydroxycyclohexyl] phosphate