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38213

Supelco

Allura Red AC

analytical standard

Synonym(s):
Disodium 6-hydroxy-5-[(2-methoxy-5-methyl-4-sulfophenyl)azo]-2-naphthalenesulfonate
Empirical Formula (Hill Notation):
C18H14N2Na2O8S2
CAS Number:
Molecular Weight:
496.42
Colour Index Number:
16035
EC Number:
MDL number:
PubChem Substance ID:
E Number:
E129
NACRES:
NA.24

grade

analytical standard

Quality Level

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

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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.

Legal Information

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Spectroscopic characterization of SC-NTR: A subsidiary dye of Allura Red AC dye (FD&C Red No. 40).
Yuiko T
Food Additives and Contaminants, 11 (1), 97-104 (1994)
Nilda R Marsili et al.
The Analyst, 130(9), 1291-1298 (2005-08-13)
This article reports on the first application of a modified version of the bilinear least-squares model to absorbance-pH second-order data recorded for complex samples. The latter are composed of fruit drink powders, where four different analytes and additional background components...
Ahmad H Alghamdi
Journal of AOAC International, 88(5), 1387-1393 (2006-01-03)
Square wave (SW) voltammetry was used to explore the adsorption properties of the food additive dye Allura Red on a hanging mercury drop electrode (HMDE). By using the adsorptive stripping voltammetric approach, we developed a sensitive electroanalytical method for the...
Mustafa Soylak et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 49(5), 1183-1187 (2011-02-26)
A new, simple, rapid and sensitive solid phase extraction procedure based on separation and preconcentration of trace levels of allura red in water samples on MCI GEL CHP20P column system has been established. Optimal analytical conditions including pH, amount of...
Yun L Xu et al.
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering, 43(5), 503-510 (2008-03-08)
In this work, a rotating photoelectrocatalytic (RPEC) reactor, using a half-exposed and half-immersed TiO(2)/Ti disc as photoanode was developed for the first time to degrade Allura Red (AR) and textile effluent. The TiO(2) film was characterised by X-ray reflection diffraction...

Protocols

HPLC Analysis of Synthetic Food Dyes on Ascentis® Express C18

Separation of Tartrazine; Amaranth; Indigo carmine; New Coccine; Sunset Yellow FCF; Allura Red AC; Fast Green FCF; Erioglaucine disodium salt; Erythrosin B sodium salt; Phloxine B; Rose bengal

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