N-Nonyldeoxynojirimycin (NN-DNJ) is a deoxynojirimycin derivative with a hydrophobic long chain. N-Nonyldeoxynojirimycin is an orally active inhibitor of acid α-glucosidase (IC50: 0.42 μM) and α-1,6-glucosidase (IC50: 8.4 μM) . N-Nonyldeoxynojirimycin has activities of inhibiting glycogen breakdown, anti-virus and anti-tumor. N-Nonyldeoxynojirimycin also has insecticidal effects, with an LD50 of 5 mM for adults of Bemisia tabaci[1][2][3][4].