N-hexacosanoylsphinganine + NADPH + O2 + H(+) => N-(2-hydroxyhexacosanoyl)-sphinganine + NADP(+) + H2O
n-hexacosanoylsphinganine + nadph + o2 + h(+) => n-(2-hydroxyhexacosanoyl)-sphinganine + nadp(+) + h2o