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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 Germany

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Compendium of Food Additive Specifications: Combined Specifications from 1st Through the 37th Meetings.
Dr.Kenji Ishii
Science, 35-37 (1990)
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)
Takeshi Serizawa et al.
Langmuir : the ACS journal of surfaces and colloids, 21(17), 7739-7742 (2005-08-11)
The anionic dyes methyl orange (MO) and allura red (AR) were used as model drugs to assess the loading and release by layer-by-layer assembled ultrathin hydrogels prepared via the amide formation of poly(acrylic acid-co-N-isopropylacrylamide) with AAc contents of 5, 10...
Reyna G Sánchez-Duarte et al.
Water science and technology : a journal of the International Association on Water Pollution Research, 65(4), 618-623 (2012-01-27)
The present study was designed to evaluate the chitosan, which has been obtained by deacetylation of chitin, as a biosorbent. The chitin was isolated from fermented shrimp waste by an important local industrial food biopolymer. The aim of this work...
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...

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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Contact Technical Service