1028-11-1 2-p-Nitrobenzenesulfonamidopyridine 4-Nitro-N-2-pyridinylbenzenesulfonamide 5-22-08-00422 (Beilstein Handbook Reference) BRN 0268979 Benzenesulfonamide, N-nitro-N-2-pyridinyl- Benzenesulfonamide, p-nitro-N-2-pyridyl- CCRIS 6819 Nisulfadine