The molecule is an acyl-CoA oxoanion arising from deprotonation of the phosphate and diphosphate OH groups of (S)-carnitinyl-CoA; major species at pH 7.3. It is a conjugate base of a (S)-carnitinyl-CoA betaine.
[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-4-hydroxy-2-[[[[(3R)-3-hydroxy-4-[[3-[2-[(3S)-3-hydroxy-4-(trimethylazaniumyl)butanoyl]sulfanylethylamino]-3-oxopropyl]amino]-2,2-dimethyl-4-oxobutoxy]-oxidophosphoryl]oxy-oxidophosphoryl]oxymethyl]oxolan-3-yl] phosphate