label: (9Z,12Z)-octadecadienoyl-CoA + 2 Fe(II)-[cytochrome b5] + O2 + 2 H(+) = (6Z,9Z,12Z)-octadecatrienoyl-CoA + 2 Fe(III)-[cytochrome b5] + 2 H2O
label_lc: (9z,12z)-octadecadienoyl-coa + 2 fe(ii)-[cytochrome b5] + o2 + 2 h(+) = (6z,9z,12z)-octadecatrienoyl-coa + 2 fe(iii)-[cytochrome b5] + 2 h2o