1.17.1.8 aspartate-beta-semialdehyde crude extract 390613 1.17.1.8 additional information no flavins 390614, 390617, 390618 1.17.1.8 NADH - 696300 1.17.1.8 NADPH similar affinity as NADH 696300 1.17.1.8 pyruvate crude extract 390613