![]() |
4-Nitrophthalonitrile Cas No 31643-49-9 Phthalonitrile Resin Raw Material2022-08-12 16:42:21 |
![]() |
CAS No 31643-49-9 1 2-Dicyano-4-Nitrobenzene 99.6% 4-Nitrophthalonitrile2022-08-12 16:55:47 |