Congo Red

cas: 573-58-0 — see every product listed under this CAS number, including other names

Congo Red (CAS 573-58-0) is a chemical reagent available from Chemat. Available pack sizes: 50mg, 25MG. Offered by: GLPBio, Sigma-Aldrich.

brand	GLPBio
catalog number	GC13270-50
cas	573-58-0
size	50mg

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Available pack sizes

brand	size	price
GLPBio	50mg	592.36 Pln
Sigma-Aldrich	25MG	816.40 Pln

properties

purity	No data
delivery time	To be confirmed by Chemat

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).

Source: ChEBI

Identity
Molecular formula	C₃₂H₂₂N₆Na₂O₆S₂
Molecular weight	696.7 g/mol
IUPAC name	disodium;4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1-sulfonate
InChIKey	IQFVPQOLBLOTPF-UHFFFAOYSA-L
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+]

Computed by PubChem (NCBI)

Synonyms: Congo red, C.I. Direct Red 28, Congazone sodium, Mitsui Congo Red, Benzo Congo Red, Cotton Red L, Haemomedical, Haemonorm, Hemorrhagyl, Hispamin Congo 4B