二糖苷酶底物 3482-57-3 4-Nitrophenyl beta-D-cellobioside 对硝基苯基-beta-D-纤维二糖苷,4-硝基苯基-beta-D-纤维二糖苷(PNPC) 70867-33-3 2-Nitrophenyl beta-D-cellobioside 邻硝基苯基-beta-D-纤维二糖,2-硝基苯基-beta-D-纤维二糖苷(ONPC) 135743-28-1 2-Chloro-4-nitrophenyl beta-D-...