Direct red 2

CAS: 992-59-6

Ref. IN-DA003O2Q

Product Information

• Name: Direct red 2
• Synonyms: benzopurpurine 4B, C.I. direct red 2, Benzopurpurin 4B, Benzopurpurine 4B, C.I. Direct Red 2, Amanil purpurine, Diphenyl Red 4B, Hispamin Red 4B, Azocard Red 4B, Diazine Red 4B, Direct Red 4B, Bencidal purple 4B, Paper Red 4B, Brasilamina Red 4B, Diaphtamine purpurine, Tetrodirect Red 4B, Amanil purpurine 4B, Diazol Purpurine 4B, Direct Purpurine 4B, Tertrodirect Red 4B, Diamine purpurine 4B, Fast Scarlet, Atul Direct Red 4B, Eclipse Red, Benzanil purpurine 4B, Diazamine purpurine 4B, Purpurine 4B, Phenamine Purpurine 4B, Chrome Leather Red 4B, Purpurin 4B, Azamin 4B, Cotton Red 4B, Diaphtamine Purpurine 4B, Direct Red 4A, Kayaku Benzopurpurine 4B, Cerven prima 2 [Czech], Erie Red 4B, Diacotton benzopurpurine 4B, C.I. Direct Red 2, disodium salt, Ditolybis(azonaphthionic acid), Ditolylbis(azonaphthionic acid), C.I. Direct Red 2 disodium salt, Disodium o-tolidinediazobis(1-naphthylamine-4-sulfonate), Direct Red 3, 1-Naphthalenesulfonic acid, 3,3'-((3,3'-dimethyl(1,1'-diphenyl)-4,4'-diyl)bis(azo))bis(4-amino-, disodium salt, Disodium 3,3'-(3,3'-dimethyl(1,1'-biphenyl)-4,4'-diyl)bis(azo)bis(4-aminonaphthalene-1-sulphonate), Cerven prima 2, 1-Naphthalenesulfonic acid, 3,3'-((3,3'-dimethyl(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(4-amino-, disodium salt, 1-Naphthalenesulfonic acid, 3,3'-((3,3'-dimethyl(1,1'-biphenyl)-4,4'-diyl)bis(2,1-diazenediyl))bis(4-amino-, sodium salt (1:2), 1-Naphthalenesulfonic acid, 3,3'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(2,1-diazenediyl)]bis[4-amino-, sodium salt (1:2), disodium 4-amino-3-((E)-{4'-[(E)-(1-amino-4-sulfonato-2-naphthyl)diazenyl]-3,3'-dimethyl[1,1'-biphenyl]-4-yl}diazenyl)-1-naphthalenesulfonate, disodium 4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]-3-methylphenyl]-2-methylphenyl]diazenyl]naphthalene-1-sulfonate, C.I.Direct Red 2, Disodium 3,3'-((3,3'-dimethyl(1,1'-biphenyl)-4,4'-diyl)bis(azo)bis(4-aminonaphthalene-1-sulphonate), dipotassium 4-amino-3-[2-(4-{4-[2-(1-amino-4-sulfonatonaphthalen-2-yl)diazen-1-yl]-3-methylphenyl}-2-methylphenyl)diazen-1-yl]naphthalene-1-sulfonate, disodium 4-amino-3-[2-(4-{4-[2-(1-amino-4-sulfonatonaphthalen-2-yl)diazen-1-yl]-3-methylphenyl}-2-methylphenyl)diazen-1-yl]naphthalene-1-sulfonate, sodium 3,3'-(1E,1'E)-(3,3'-dimethylbiphenyl-4,4'-diyl)bis(diazene-2,1-diyl)bis(4-aminonaphthalene-1-sulfonate), Benzopurpurine 4B, indicator - 25G 25g, 1-Naphthalenesulfonic acid, 3,3'-[(3,3'-dimethyl[1,1'- biphenyl]-4,4'-diyl)bis(azo)]bis[4-amino-, disodium salt, 1-Naphthalenesulfonic acid, 3,3'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-amino-, disodium salt
• Brand: Indagoo

Chemical properties

• Molecular weight: 724.7164
• Formula: C₃₄H₂₆N₆Na₂O₆S₂
• Purity: 98%
• Color/Form: Solid
• InChI: InChI=1S/C34H28N6O6S2.2Na/c1-19-15-21(11-13-27(19)37-39-29-17-31(47(41,42)43)23-7-3-5-9-25(23)33(29)35)22-12-14-28(20(2)16-22)38-40-30-18-32(48(44,45)46)24-8-4-6-10-26(24)34(30)36;;/h3-18H,35-36H2,1-2H3,(H,41,42,43)(H,44,45,46);;/q;2*+1/p-2
• InChI key: SUXCALIDMIIJCK-UHFFFAOYSA-L