direct fast black g
post date: nov 30,2021 expiry date: may 29,2022 detailed description: cas no. :6428-31-5 cas registry number: 6428-31-5 synonyms: ;c.i. 35255;c.i. direct black 19;c.i. direct black 19 (van);c.i. direct black 19, disodium salt;direct fast black g;c.i.direct black 19;disodium (3e)-5-amino-6-[(e)-{4-[(e)-(2,4-diaminophenyl)diazenyl]phenyl}diazenyl]-3-(2-{4-[(e)-(2,4-diaminophenyl)diazenyl]phenyl}hydrazinylidene)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonate;(3e)-5-amino-6-[(e)-{4-[(e)-(2,4-diaminophenyl)diazenyl]phenyl}diazenyl]-3-(2-{4-[(e)-(2,4-diaminophenyl)diazenyl]phenyl}hydrazinylidene)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonic acid;direct black g; molecular formula: c34h27n13na2s2o7 molecular weight: 839.77 molecular structure:
