3-oxopropanoate + NADH + 2 H(+) => malonaldehyde + NAD(+) + H2O
3-oxopropanoate + nadh + 2 h(+) => malonaldehyde + nad(+) + h2o
3-oxopropanoate + NADH + 2 H(+) => malonaldehyde + NAD(+) + H2O
3-oxopropanoate + nadh + 2 h(+) => malonaldehyde + nad(+) + h2o