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Congo Red

An amyloid fibril-binding dye
Catalog #: 2588
SKU-Size Size Price Qty
2588-100 100 mg
2588-500 500 mg
More Sizes Get Quote

Product Details

Alternate Name 3,3'-[(1,1'-Biphenyl)-4,4'-diyl-bis(2,1-diazenediyl)]bis(4-amino-1-naphthalenesulfonic acid) disodium salt
Appearance Dark red solid
CAS # 573-68-0
Molecular Formula C₃₂H₂₂N₆Na₂O₆S₂
Molecular Weight 696.66
Purity ≥98% by HPLC
Solubility H₂O (~ 5 mg/ml) or DMSO (~5 mg/ml)
SMILES C1=CC=C2C(=C1)C(=CC(=C2N)N=NC3=CC=C(C=C3)C4=CC=C(C=C4)N=NC5=C(C6=CC=CC=C6C(=C5)S(=O)(=O)[O-])N)S(=O)(=O)[O-].[Na+].[Na+]
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
PubChem CID 11313
MDL Number MFCD00004028
Handling Protect from light and moisture
Storage Conditions RT
Shipping Conditions RT
USAGE For Research Use Only! Not For Use in Humans.


Congo Red amyloid fibril-binding dye; inhibits Fib-beta A neurotoxicity by inhibiting fibril formation or by binding to preformed fibrils. Congo red also inhibits the pancreatic islet cell toxicity of diabetes-associated amylin, another type of amyloid fibril. Also acts as an inhibitor of protease-resistant prion protein formation.

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