CAS: 5001-72-9 - Direct Red 31

Formula: C₃₂H₂₁N₅Na₂O₈S₂

InChI: InChI=1S/C32H23N5O8S2.2Na/c38-31-25-13-11-23(15-19(25)17-27(46(40,41)42)29(31)36-34-21-7-3-1-4-8-21)33-24-12-14-26-20(16-24)18-28(47(43,44)45)30(32(26)39)37-35-22-9-5-2-6-10-22;;/h1-18,33,38-39H,(H,40,41,42)(H,43,44,45);;

InChI key: InChIKey=HBCTXOSBEYAALJ-UHFFFAOYSA-N

SMILES: [Na].O=S(=O)(O)C=1C=C2C=C(C=CC2=C(O)C1N=NC=3C=CC=CC3)NC=4C=CC=5C(C4)=CC(=C(N=NC=6C=CC=CC6)C5O)S(=O)(=O)O

Synonyms:

• 2-Naphthalenesulfonic acid, 7,7'-iminobis(4-hydroxy-3-(2-
• 2-Naphthalenesulfonic acid, 7,7'-iminobis(4-hydroxy-3-(2-phenyldiazenyl)-, sodium salt (1:2)
• 2-Naphthalenesulfonic acid, 7,7'-iminobis(4-hydroxy-3-(phenylazo)-, disodium salt
• Aizen Direct Rhoduline Red BH
• Amanil Rhoduline Red B
• Atlantic Brilliant Red 12B
• Atul Direct Red 12B
• Azine Fast Red 12BK
• Belamine Fast Pink G
• Belamine Red 12B
• Benzanil Rose B
• Benzo Rhoduline Red B
• Benzo Rhoduline Red BA-CF
• Chloramine Rose B
• Chlorazol Rose B
• Colonal Red 7B
• Cresotine Pink 3B
• Diacotton Rhoduline Red B
• Diamine Rhoduline Red B
• Diaphtamine Red 12B
• Diazamine Fast Purpurine
• Diazol Rose R
• Direct Brilliant Red B
• Direct Pink 12B
• Direct Pink 3B
• Direct Pink 5B
• Direct Pink EG
• Direct Red 12B
• Direct Red M 12B
• Direct Rhoduline Red B
• Direct Rose RW
• Direct Safranine RW
• Disodium 7,7'-iminobis(4-hydroxy-3-(phenylazo)naphthalene-2-sulphonate)
• Einecs 225-669-8
• Enianil Fast Brilliant Red 12B
• Erie Brilliant Red 12B
• Fenamin Red B
• Kayaku Direct Rhoduline Red B
• Libia Red 12B
• Mitsui Direct Brilliant Red B
• Nippon Fast Red BB
• Phenamine Rhoduline Red B
• Pink 12B
• Pontamine Red 12B
• Tertrodirect Pink DR
• Vondacel Red 12B
• disodium (3E,3'E)-7,7'-iminobis[4-oxo-3-(2-phenylhydrazinylidene)-3,4-dihydronaphthalene-2-sulfonate]

2-Naphthalenesulfonic acid, 7,7'-iminobis[4-hydroxy-3-(phenylazo)-,disodium salt

CAS: 5001-72-9

• Formula: C₃₂H₂₁N₅Na₂O₈S₂
• Molecular weight: 713.6474

Direct Red 31, Technical grade Dye content

CAS: 5001-72-9

Direct Red 31 is a dye that is used in wastewater treatment. The dye has …

• Purity: Min. 95%