label: (22S)-22-hydroxy-campesterol C-23 hydroxylase activity
label_lc: (22s)-22-hydroxy-campesterol c-23 hydroxylase activity
description: "Catalysis of the reaction: H+ + (22S)-22-hydroxycampesterol + NADPH + O2 = (22R,23R)-22,23-dihydroxycampesterol + NADP + H2O."