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Congo red (C.I. 22120) - indicator Reag. Ph Eur, high purity , CAS No.573-58-0
Basic Description Synonyms Congo red|573-58-0|DIRECT RED 28|C.I. Direct Red 28|Congo Red 4B|Congazone sodium|Benzo Congo Red|Haemomedical|Haemonorm|Hemorrhagyl|Solucongo|Sugai Congo Red|Atul Congo Red|Vondacel Red CL|Kayaku Congo Red|Mitsui Congo Red|Cotton Red L|Direct Red K|Azoca Specifications & Purity indicator, Ph.Eur. Storage Temp Room temperature Shipped In Normal Grade indicator, Ph.Eur.
Names and Identifiers IUPAC Name disodium;4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]naphthalene-1-sulfonate 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 InChi Key IQFVPQOLBLOTPF-UHFFFAOYSA-L Canonical 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+] Isomeric 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+] PubChem CID 11313 Molecular Weight 696.66
Chemical and Physical Properties Safety and Hazards(GHS) Pictogram(s) GHS08 Signal Danger Hazard Statements H350: May cause cancer
H361d: Suspected of damaging the unborn child
Precautionary Statements P280: Wear protective gloves/protective clothing/eye protection/face protection.
P405: Store locked up.
P501: Dispose of contents/container to ...
P203: Obtain, read and follow all safety instructions before use.
P318: if exposed or concerned, get medical advice.
Merck Index 2498
References 1. Ge Yang, Mengling Sun, Chunzheng Wang, Yanpeng Li, Yongming Chai, Hailing Guo, Svetlana Mintova. (2023) Dual regulation of graphene oxide membrane by crosslinker and hydrophilic promoter for dye separation. Microporous and Mesoporous Materials, 360 (无): (112718). [PMID:
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