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Congo Red

CAT: 0804-HY-D0236-01Size: 500 mgDry Ice: NoHazardous: No
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CAT#:0804-HY-D0236-01Size:500 mg
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Description
Congo Red is an azo dye. Congo Red (CR) binding been used as a diagnostic test for the presence of amyloid in tissue sections.
CAS Number
573-58-0
UNSPSC
12171500
Hazard Statement
H350, H361
Target
Fluorescent Dye
Type
Dye Reagents
Related Pathways
Others
Field of Research
Others
Assay Protocol
https://www.medchemexpress.com/Congo_Red.html
Purity
95.0
Solubility
DMSO : 20 mg/mL (ultrasonic) |H2O : < 0.1 mg/mL
Smiles
O=S(C1=C2C=CC=CC2=C(N)C(N=NC3=CC=C(C4=CC=C(N=NC5=CC(S(=O)(O[Na])=O)=C6C=CC=CC6=C5N)C=C4)C=C3)=C1)(O[Na])=O
Molecular Formula
C32H22N6Na2O6S2
Molecular Weight
696.66
Precautions
H350, H361
References & Citations
[1]Amornvit J, et al. A novel p.T139M mutation in HSPB1 highlighting the phenotypic spectrum in a family. Brain Behav. 2017 Jul 21;7 (8) :e00774.
Shipping Conditions
Room Temperature
Storage Conditions
4°C (Powder, sealed storage, away from moisture and light)
Scientific Category
Dye Reagents
Clinical Information
No Development Reported

Chemical Information

Congo red

Congo Red is an indicator dye that is blue-violet at pH 3.0 and red at pH 5.0. It contains a 3,3'-(biphenyl-4,4'-diyldidiazene-2,1-diyl)bis(4-aminonaphthalene-1-sulfonate). It is functionally related to a 3,3'-(biphenyl-4,4'-diyldidiazene-2,1-diyl)bis(4-aminonaphthalene-1-sulfonic acid).

CAS Number573-58-0
PubChem CID11313
IUPAC Namedisodium;4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1-sulfonate
Molecular FormulaC32H22N6Na2O6S2
Molecular Weight696.7
Topological Polar Surface Area233
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count12
Rotatable Bond Count5
Heavy Atom Count48
Formal Charge0
Complexity1180
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
InChIKey
IQFVPQOLBLOTPF-UHFFFAOYSA-L
Chemical Structure
2D Structure
2D structure of Congo red
CAS: 573-58-0
CID: 11313
Formula: C32H22N6Na2O6S2
MW: 696.7
Interactive 3D Structure
Loading 3D structure...
View on PubChemRaw 3D data
Computed Properties
PropertyValue
Molecular Weight696.7
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count12
Rotatable Bond Count5
Exact Mass696.08376335
Monoisotopic Mass696.08376335
Topological Polar Surface Area233 Ų
Heavy Atom Count48
Formal Charge0
Complexity1180
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
Covalently-Bonded Unit Count3
Compound Is CanonicalizedYes

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