G 1381 (OTTO) Glutathione oxidized, for molecular biology, 99.5% Cas 27025-41-8 - used as a acts as hydrogen acceptor in enzymatic determination of NADP and NADPH. G 1381 (OTTO) Glutathione oxidized, for molecular biology, 99.5% Cas 27025-41-8 - used to reduced back to glutathione (GSH) via the NADPH-dependent enzyme glutathione reductase.