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38213 Supelco

Allura Red AC

analytical standard

Synonym: Disodium 6-hydroxy-5-[(2-methoxy-5-methyl-4-sulfophenyl)azo]-2-naphthalenesulfonate

  • CAS Number 25956-17-6

  • Empirical Formula (Hill Notation) C18H14N2Na2O8S2

  • Molecular Weight 496.42

  •  Colour Index Number 16035

  •  EC Number 247-368-0

  •  MDL number MFCD00059526

  •  PubChem Substance ID 329755751

  •  E Number E129

  •  NACRES NA.24

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Properties

Related Categories Additional Standards, All Alphabetically Sorted, All alphabetical sorted, Analytical Standards, Analytical/Chromatography,
Quality Level   100
grade   analytical standard
assay   ≥98.0% (HPLC)
form   neat
application(s)   HPLC: suitable
  gas chromatography (GC): suitable
mp   >300 °C (lit.)
Featured Industry   Cleaning Products
Cosmetics
Food and Beverages
Personal Care
format   neat
SMILES string   [Na+].[Na+].COc1cc(c(C)cc1\N=N\c2c(O)ccc3cc(ccc23)S([O-])(=O)=O)S([O-])(=O)=O
InChI   1S/C18H16N2O8S2.2Na/c1-10-7-14(16(28-2)9-17(10)30(25,26)27)19-20-18-13-5-4-12(29(22,23)24)8-11(13)3-6-15(18)21;;/h3-9,21H,1-2H3,(H,22,23,24)(H,25,26,27);;/q;2*+1/p-2/b20-19+;;
InChI key   CEZCCHQBSQPRMU-LLIZZRELSA-L

Description

General description

Allura Red AC belongs to the class of monoazo dyes. It comprises of 6-hydroxy-5-(2-methoxy-5-methyl-4-sulfonate-phenylazo)-2-napthalene-sulfonate, which is basically an azo-coupling product between the meta-isomer of cresidine-p-sulphonic acid (CSA) and Schaeffer′s salt (SS). It exists in the form of dark red powder or granules and finds application in being used in food colors. It is soluble in water and is insoluble in ethanol.

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.

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 2
RTECS 
QK2260000
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Protocols & Articles

Articles

HPLC Analysis of Synthetic Food Dyes on Ascentis® Express C18

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Synthetic Food Dyes on Ascentis® Express C18
Keywords: Chromatography, High performance liquid chromatography

Peer-Reviewed Papers
15

References

Related Products

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