Chemical Compound

Congo red

CAS Registry Number 573-58-0
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Congo red chemical structure
Primary Record

Congo red

In stock
4,959 g
Purity
98.9 %
CAS
573-58-0

Compound Identifiers & Properties

CAS
573-58-0
PubChem CID
11313
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+]
Canonical SMILES
Nc1c(N=Nc2ccc(-c3ccc(N=Nc4cc(S(=O)(=O)[O-])c5ccccc5c4N)cc3)cc2)cc(S(=O)(=O)[O-])c2ccccc12.[Na+].[Na+]

Names & Synonyms

  • Congo red
  • DIRECT RED 28
  • Benzo Congo Red
  • Haemomedical
  • Congazone sodium
  • Hemorrhagyl
  • Haemonorm
  • Solucongo
  • Kongorot
  • 573-58-0
  • Sugai Congo Red
  • Atul Congo Red
  • Vondacel Red CL
  • Kayaku Congo Red
  • Mitsui Congo Red
  • Congo Red 4B
  • Cotton Red L
  • Direct Red C
  • Direct Red K
  • C.I. Direct Red 28
  • Azocard Red Congo
  • Congo Red H
  • Congo Red L
  • Congo Red M
  • Congo Red N
  • Congo Red R
  • Congo Red W
  • Congo Red CR
  • Congo Red WS
  • Cotton Red 5B
  • Erie Congo 4B
  • Atlantic Congo Red
  • Cotton Red 4BC
  • Tertrodirect Red C
  • Cerven kongo
  • Hispamin Congo 4B
  • Congo Red 4BX
  • Red K
  • Diacotton Congo Red
  • Peeramine Congo Red
  • Trisulfon Congo Red
  • Direct Red DC-CF
  • Cotton Red
  • Congo Red ICI
  • Tiflucarbine
  • Kongorot [German]
  • Brasilamina congo 4B
  • congo-red
  • DirectRed28
  • Cerven prima 28
  • Cerven kongo [Czech]
  • Congo red [USP]
  • Direct Congo Red
  • Congo Red K
  • Congo Red RS
  • CI Direct Red 28
  • Cerven prima 28 [Czech]
  • Congo Red sodium salt
  • CCRIS 2277
  • C.I.Direct Red 28
  • Congo Red (90%)
  • AC1LAO7K
  • UNII-3U05FHG59S
  • CONGO RED [MI]
  • CONGO RED [HSDB]
  • Congo Red, indicator grade
  • HSDB 4225
  • AC1L1X3A
  • C32H22N6Na2O6S2
  • 3U05FHG59S
  • CONGO RED [MART.]
  • C.I. 22120
  • C.I. Direct Red 28, disodium salt
  • CONGO RED [WHO-DD]
  • Congo Red, certifiable grade
  • MFCD00004028
  • SCHEMBL25635
  • DTXSID4022816
  • NSC 7232
  • ARONIS27040
  • SCHEMBL202229
  • CI Direct Red 28 Congo red
  • Congo Red, JIS special grade
  • EINECS 209-358-4
  • Congo Red, analytical standard
  • Diphenyl Bisazonaphthionic Acid
  • NSC 56651
  • CHEMBL429694
  • Congo Red (C.I. 22120)
  • DTXCID502816
  • orb1308431
  • NSC-7232
  • SCHEMBL29366109
  • SCHEMBL29395841
  • C32H22N6O6S2.2Na
  • C32H24N6O6S2.2Na
  • CHEBI:34653
  • KS-00000WTR
  • AI3-63036
  • MSK5831
  • IQFVPQOLBLOTPF-UHFFFAOYSA-L
  • NSC-56651
  • GLXC-20473
  • HMS5085C06
  • Congo Red, Dye content >=35 %
  • CID11313
  • KS-000048JF
  • SAI_0008
  • Tox21_111605
  • Tox21_202934
  • c0204
  • c0383
  • c0550
  • HB0737
  • LS-236
  • NSC-75913
  • AKOS000282971
  • AKOS016368576
  • AKOS024285600
  • FD03839
  • C32-H24-N6-O6-S2.2Na
  • NCGC00159364-02
  • NCGC00260480-01
  • AN-46007
  • CAS-573-58-0
  • DA-52047
  • SY010430
  • T410
  • sodium diphenyldiazo-bis-alpha-naphthylaminesulfonate
  • Sodium diphenyldiazo-bis(alpha-naphthylaminesulfonate)
  • B7766
  • C.I. Direct Red 28, disodium salt (8CI)
  • FT-0624037
  • NS00020843
  • ST24030394
  • Congo Red, High Purity - CAS 573-58-0
  • C14078
  • D89267
  • Y-8985
  • Q114391
  • Sodium Diphenyldiazo-bis(alpha-NAPH-Thylaminesulfonate)
  • 1-Naphthalenesulfonic acid,3,3'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis[4-amino-, disodium salt
  • Disodium 3,3'-((1,1'-biphenyl)-4,4'-diylbis(azo))bis(4-aminonaphthalene-1-sulphonate)
  • Natrium-salz der diphenyl-bis-azo-bis-naphthylamin-4-sulfonsaeure
  • Natrium-salz der diphenyl-bis-azo-bis-naphthylamin-4-sulfonsaeure [German]
  • 1-Naphthalenesulfonic acid, 3,3'-((1,1'-biphenyl)-4,4'-diylbis(azo))bis(4-amino-, disodium salt
  • 1-Naphthalenesulfonic acid, 3,3'-(4,4'-biphenylenebis(azo))bis(4-amino-, disodium salt
  • Congo Red, BioXtra, certified by the Biological Stain Commission
  • disodium 3,3'-(biphenyl-4,4'-diyldidiazene-2,1-diyl)bis(4-aminonaphthalene-1-sulfonate)
  • disodium 4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1-sulfonate
  • Sodium 3,3'-([1,1'-biphenyl]-4,4'-diylbis(diazene-2,1-diyl))bis(4-aminonaphthalene-1-sulfonate)
  • Congo Red, for microscopy (Bact., Bot., Hist.), indicator (pH 3.0-5.2), Reag. Ph. Eur.
  • Disodium 3,3'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis(4-aminonaphthalene-1-sulphonate)
  • disodium 3,3'-[4,4'-biphenyldiylbis(2,1-diazenediyl)]bis(4-amino-1-naphthalenesulfonate)
  • 1-Naphthalenesulfonic acid, 3,3'-((1,1'-biphenyl)-4,4'-diylbis(2,1-diazenediyl))bis(4-amino-, sodium salt (1:2)
  • 1-NAPHTHALENESULFONIC ACID, 3,3'-((1,1'-BIPHENYL)-4,4'-DIYLDIAZO)BIS(4-AMINO-, DISODIUM SALT
  • 1-naphthalenesulfonic acid, 3,3'-([1,1'-biphenyl]-4,4'-diyldiazo)bis[4-amino-, disodium salt
  • 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'-diyl-4,4'-diyl)bis(azo)]bis[(4-amino-, disodium salt
  • 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(azo)]bis[4-amino-, disodium salt (9CI)
  • 3,3'-[[1,1'Biphenyl]-4,4'-diylbis(azo)-]bis[4-amino-1-naphthalenesulfonic acid] disodium salt
  • Congo Red 4B; Cosmos Red; Cotton Red B; Cotton Red C; Direct Red 28; Direct Red R; Direct Red Y
  • Congo red;1-Naphthalenesulfonic acid, 3,3'-[[1,1'-biphenyl]-4,4'-diylbis(2,1-diazenediyl)]bis[4-amino-, sodium salt (1:2) (ACI); 1-Naphthalenesulfonic acid, 3,3'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis[4-amino-, disodium salt (9CI); C.I. Direct Red 28, disodium salt (8CI); Atlantic Congo Red; Atul Congo Red; Azocard Red Congo; Benzo Congo Red; Brasilamina Congo 4B; C.I. 22120; C.I. Direct Red 28; Congo Red 4B; Congo Red 4BS; Congo Red 4BX; Congo Red CR; Congo red disodium salt; Congo Red H; Congo Red K; Congo Red L; Congo Red M; Congo Red N; Congo Red R; Congo Red RS; Congo Red sodium salt; Congo Red TS; Congo Red W; Congo Red WS; Cotton Red 4BC; Cotton Red 5B; Cotton Red L; Diacotton Congo Red; Direct Red 28; Direct Red C; Direct Red DC-CF; Direct Red K; Direct Red R; Direct Scarlet 4B; Erie Congo 4B; Haemomedical; Haemonorm; Hemorrhagyl; Hispamin Congo 4B; Kayaku Congo Red; Mitsui Congo
  • dipotassium 4-amino-3-[2-(4-{4-[2-(1-amino-4-sulfonatonaphthalen-2-yl)diazen-1-yl]phenyl}phenyl)diazen-1-yl]naphthalene-1-sulfonate
  • DISODIUM 3,3'-(BIPHENYL-4,4'-DIYLDIDIAZENE-2,1-DIYL)BIS(4-AMINONAPHTHALENE-1-SULPHONATE)
  • disodium 3,3'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis(4-aminonaphthalene-1-sulphonate); C.I. Direct Red 28
  • Disodium 3,3'-[[1,1'-biphenyl]-4,4'-diylbis(diazene-2,1-diyl)]bis(4-aminonaphthalene-1-sulfonate)
  • disodium 3,3'-[biphenyl-4,4'-diyldi(E)diazene-2,1-diyl]bis(4-aminonaphthalene-1-sulfonate)
  • disodium 4-amino-3-[2-(4-{4-[2-(1-amino-4-sulfonatonaphthalen-2-yl)diazen-1-yl]phenyl}phenyl)diazen-1-yl]naphthalene-1-sulfonate
  • disodium 4-amino-3-[4-[4-(1-amino-4-sulfonatonaphthalen-2-yl)diazenylphenyl]phenyl]diazenylnaphthalene-1-sulfonate
  • disodium 4-amino-3-[4-[4-[(1-amino-4-sulfonato-2-naphthyl)azo]phenyl]phenyl]azo-naphthalene-1-sulfonate
  • disodium;4-amino-3-[4-[4-[(1-amino-4-sulfonato-2-naphthyl)azo]phenyl]phenyl]azo-naphthalene-1-sulfonate