The molecule is an S-acyl-4'-phosphopantetheine obtained by formal condensation of the thiol group of D-pantetheine 4'-phosphate with one of the carboxy groups of malonic acid. It derives from a malonic acid.
3-[2-[3-[[(2R)-2-hydroxy-3,3-dimethyl-4-phosphonooxybutanoyl]amino]propanoylamino]ethylsulfanyl]-3-oxopropanoic acid