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Congo Red
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Congo Red

CAS: 573-58-0

Ref. 3B-C0550

Estimated delivery in United States, on Thursday 15 Dec 2022

Product Information

Congo Red
  • Direct Red 28
  • 1-Naphthalenesulfonic acid, 3,3'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis[4-amino-, disodium salt
  • 1-Naphthalenesulfonic acid, 3,3'-[[1,1'-biphenyl]-4,4'-diylbis(2,1-diazenediyl)]bis[4-amino-, sodium salt (1:2)
  • 3,3'-[(1,1'-Biphenyl)-4',4'-diyl)bis(azo)]bis[4-amino-1-naphthalenesulfonic acid, disodium salt
  • 3,3'-[[1,1'-Bifenil]-4,4'-Diilbis(Azo)]Bis(4-Aminonaftaleno-1-Sulfonato) De Disodio
  • 3,3'-[[1,1'-Biphenyl]-4,4'-diylbis(azo)]bis(4-aminonaphtalene-1-sulfonate) de disodium
  • Atlantic Congo Red
  • Atul Congo Red
  • Azocard Red Congo
  • Benzo Congo Red
  • See more synonyms
  • Brasilamina Congo 4B
  • Congo Red 4B
  • Congo Red 4BS
  • Congo Red 4BX
  • Congo Red CR
  • Congo Red H
  • Congo Red K
  • Congo Red L
  • Congo Red M
  • Congo Red N
  • Congo Red R
  • Congo Red RS
  • Congo Red Stain
  • Congo Red TS
  • Congo Red W
  • Congo Red WS
  • Congo Red sodium salt
  • Congo red (0.1% in water)
  • Congo red (0.1% in water)[for titration]
  • Congo red disodium salt
  • Cotton Red 4BC
  • Cotton Red 5B
  • Cotton Red L
  • Diacotton Congo Red
  • Dinatrium-3,3'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis(4-aminonaphthalin-1-sulfonat)
  • Direct Congo Red
  • Direct Red 28
  • Direct Red C
  • Direct Red DC-CF
  • Direct Red K
  • Direct Red R
  • Direct Scarlet 4B
  • Disodium 3,3'-[[1,1'-Biphenyl]-4,4'-Diylbis(Azo)]Bis(4-Aminonaphthalene-1-Sulphonate)
  • Disodium 4-Amino-3-[4-[4-[(1-Amino-4-Sulfonato-2-Naphthyl)Azo]Phenyl]Phenyl]Azo-Naphthalene-1-Sulfonate
  • Erie Congo 4B
  • Haemomedical
  • Haemonorm
  • Hemorrhagyl
  • Hispamin Congo 4B
  • Kayaku Congo Red
  • Kongorot
  • Mitsui Congo Red
  • Peeramine Congo Red
  • Red K
  • Red K (dye)
  • Sodium Diphenyl-Bis-{Naphthylamine) Sulfonate}
  • Solucongo
  • Sugai Congo Red
  • Tertrodirect Red C
  • Trisulfon Congo Red
  • Vondacel Red CL
  • disodium 3,3'-[biphenyl-4,4'-diyldi(E)diazene-2,1-diyl]bis(4-aminonaphthalene-1-sulfonate)
Long term storage:

Chemical properties

Molecular weight:
Dark red to Brown powder to crystal
Melting point:
Boiling point:
Flash point:
HS code:

Hazard Info

UN Number:
H Statements:
P Statements:
Forbidden to fly:
Hazard Info:
Packing Group:

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