1.6.6.1 nitrate reductase (NADH) transferred to EC 1.7.1.1 1.6.6.10 nitroquinoline-N-oxide reductase transferred to EC 1.7.1.9 1.6.6.11 hydroxylamine reductase (NADH) transferred to EC 1.7.1.10 1.6.6.12 4-(dimethylamino)phenylazoxybenzene reductase transferred to EC 1.7.1.11 1.6.6.13 N-hydroxy-2-acetamidofluorene reductase transferred to EC 1.7.1.12 1.6.6.2 nitrate reductase [NAD(P)H] transferred to EC 1.7.1.2 1.6.6.3 nitrate reductase (NADPH) transferred to EC 1.7.1.3 1.6.6.4 nitrite reductase [NAD(P)H] transferred to EC 1.7.1.4 1.6.6.5 Recommended Name never specified transferred to EC 1.7.99.3 1.6.6.6 hyponitrite reductase transferred to EC 1.7.1.5 1.6.6.7 azobenzene reductase transferred to EC 1.7.1.6 1.6.6.8 GMP reductase transferred to EC 1.7.1.7 1.6.6.9 trimethylamine-N-oxide reductase transferred to EC 1.7.2.3