Direct Red 28

CAS: 573-58-0

Ref. IN-DA00IA7N

Product Information

• Name: Direct Red 28
• Synonyms: Congo Red, Red, Congo, Congo red, Benzo Congo Red, C.I. Direct Red 28, Haemomedical, Congo Red 4B, Haemonorm, Hemorrhagyl, Solucongo, Congazone sodium, Sugai Congo Red, Atul Congo Red, Kayaku Congo Red, Mitsui Congo Red, Cotton Red L, Direct Red C, Direct Red K, Azocard Red Congo, Congo Red H, Congo Red L, Congo Red M, Congo Red N, Congo Red R, Congo Red W, Atlantic Congo Red, Cotton Red 5B, Erie Congo 4B, Tertrodirect Red C, Hispamin Congo 4B, Red K, Diacotton Congo Red, Peeramine Congo Red, Trisulfon Congo Red, Brasilamina congo 4B, Kongorot [German], Kongorot, Cerven kongo [Czech], Cerven prima 28 [Czech], C.I. Direct Red 28, disodium salt, Congo Red, indicator grade, sodium diphenyldiazo-bis-alpha-naphthylaminesulfonate, Sodium diphenyldiazo-bis(alpha-naphthylaminesulfonate), Disodium 3,3'-((1,1'-biphenyl)-4,4'-diylbis(azo))bis(4-aminonaphthalene-1-sulphonate), Cosmos Red, Cotton Red B, Cotton Red C, Direct Red R, Direct Red Y, Natrium-salz der diphenyl-bis-azo-bis-naphthylamin-4-sulfonsaeure [German], 1-Naphthalenesulfonic acid, 3,3'-((1,1'-biphenyl)-4,4'-diylbis(azo))bis(4-amino-, disodium salt, Cerven kongo, 1-Naphthalenesulfonic acid, 3,3'-(4,4'-biphenylenebis(azo))bis(4-amino-, disodium salt, Cerven prima 28, congo-red, Direct Congo Red, DirectRed28, Congo Red K, 1-Naphthalenesulfonic acid, 3,3'-((1,1'-biphenyl)-4,4'-diylbis(2,1-diazenediyl))bis(4-amino-, sodium salt (1:2), 1-Naphthalenesulfonic acid, 3,3'-[[1,1'-biphenyl]-4,4'-diylbis(2,1-diazenediyl)]bis[4-amino-, sodium salt (1:2), disodium 3,3'-[biphenyl-4,4'-diyldi(E)diazene-2,1-diyl]bis(4-aminonaphthalene-1-sulfonate), disodium 4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1-sulfonate, Congo Red sodium salt, Sodium 3,3'-(1e,1'e)-Biphenyl-4,4'-Diylbis(Diazene-2,1-Diyl)bis(4-Aminonaphthalene-1-Sulfonate), Congo Red, analytical standard, Diphenyl Bisazonaphthionic Acid, Congo Red, Dye content >=35 %, Natrium-salz der diphenyl-bis-azo-bis-naphthylamin-4-sulfonsaeure, Congo Red, BioXtra, certified by the Biological Stain Commission, disodium 3,3'-(biphenyl-4,4'-diyldidiazene-2,1-diyl)bis(4-aminonaphthalene-1-sulfonate), disodium 3,3'-[4,4'-biphenyldiylbis(2,1-diazenediyl)]bis(4-amino-1-naphthalenesulfonate), 1-naphthalenesulfonic acid, 3,3'-([1,1'-biphenyl]-4,4'-diyldiazo)bis[4-amino-, disodium salt, 1-Naphthalenesulfonic acid,3,3'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis[4-amino-, disodium salt, 3,3'-[[1,1'Biphenyl]-4,4'-diylbis(azo)-]bis[4-amino-1-naphthalenesulfonic acid] disodium salt
• Brand: Indagoo

Chemical properties

• Molecular weight: 696.6632
• Formula: C₃₂H₂₂N₆Na₂O₆S₂
• Color/Form: Solid
• InChI: InChI=1S/C32H24N6O6S2.2Na/c33-31-25-7-3-1-5-23(25)29(45(39,40)41)17-27(31)37-35-21-13-9-19(10-14-21)20-11-15-22(16-12-20)36-38-28-18-30(46(42,43)44)24-6-2-4-8-26(24)32(28)34;;/h1-18H,33-34H2,(H,39,40,41)(H,42,43,44);;/q;2*+1/p-2
• InChI key: IQFVPQOLBLOTPF-UHFFFAOYSA-L