tetrasodium 4,4-[carbonylbis(imino-4,1-phenyleneazo)]bis[3-amino-5-hydroxynaphthalene-2,7-disulphonate]
CAS No. 6771-81-9
tetrasodium 4,4-[carbonylbis(imino-4,1-phenyleneazo)]bis[3-amino-5-hydroxynaphthalene-2,7-disulphonate];Direct red 101 (C.I. 25320);4,4-[Ureylenebis[(4,1-phenylene)azo]]bis[3-amino-5-hydroxynaphthalene-2,7-disulfonic acid disodium] salt;C.I.25320;C.I.Dire