75768

Congo Red

analytical standard

• Synonym(s): Congo Red 4B, Cosmos Red, Cotton Red B, Cotton Red C, Direct Red 28, Direct Red R, Direct Red Y
• Empirical Formula (Hill Notation): C₃₂H₂₂N₆Na₂O₆S₂
• CAS Number: 573-58-0
• Molecular Weight: 696.66
• EC Number: 209-358-4
• UNSPSC Code: 85151701
• NACRES: NA.24
• PubChem Substance ID: 329766696
• MDL number: MFCD00004028
• Colour Index Number: 22120
• Beilstein/REAXYS Number: 3894858

Properties

• grade: analytical standard
• Quality Segment: 100
• assay: ≥97.0% (HPLC)
• technique(s): HPLC: suitable, chromatography: suitable, gas chromatography (GC): suitable
• mp: >360 °C (lit.)
• application(s): cleaning products; cosmetics; environmental; food and beverages; personal care
• format: neat
• SMILES string: [Na+].[Na+].Nc1c(cc(c2ccccc12)S([O-])(=O)=O)\N=N\c3ccc(cc3)-c4ccc(cc4)\N=N\c5cc(c6ccccc6c5N)S([O-])(=O)=O
• 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/b37-35+,38-36+;;
• InChI key: IQFVPQOLBLOTPF-HKXUKFGYSA-L

Description

General description

This compound is listed in the SVHC (Substances of very high concern) candidate list of ECHA (European Chemicals Agency)

Application

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Other Notes

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

Safety Information

• Pictograms: GHS08
• Signal Word: Danger
• Hazard Codes: H350,H361d
• Precautionary Statements: P201 - P202 - P280 - P308 + P313 - P405 - P501
• Hazard Classifications: Carc. 1B - Repr. 2
• Storage Class: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 3
• PPE (personal protective equipment): Eyeshields, Gloves, type P3 (EN 143) respirator cartridges