4-saturated-(3S)-hydroxyacyl-CoA(4-)
4-saturated-(3s)-hydroxyacyl-coa(4-)
A (<i>S</i>)-3-hydroxyacyl-CoA(4−) arising from deprotonation of the phosphate and diphosphate OH groups of any 4-saturated-(3<i>S</i>)-hydroxyacyl-CoA; major species at pH 7.3.