1.1.1.162	D-threitol + NADP+ = D-erythrulose + NADPH + H+	in an early reference the enzymatic reaction product of D-erythrulose was incorrectly identified as erythritol, gas-liquid and thin-layer chromatographic data have since confirmed the product to be D-threitol, not erythritol, for this reason the systematic name D-threitol:NADP+ oxidoreductase is now used instead of erythritol:NADP+ oxidoreductase	286086