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Ponceau SX

analytical standard

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Synonym(s):
3-(2,4-Dimethyl-5-sulfophenylazo)-4-hydroxynaphthalene-1-sulfonic acid disodium salt, Food Red 1
Empirical Formula (Hill Notation):
C18H14N2Na2O7S2
CAS Number:
4548-53-2
Molecular Weight:
480.42
Colour Index Number:
14700
Beilstein:
7161700
EC Number:
224-909-9
MDL number:
MFCD00046402
UNSPSC Code:
85151701
PubChem Substance ID:
329770121
E Number:
E125
NACRES:
NA.24

grade

analytical standard

Quality Level

100

Assay

≥98.0% (HPLC)

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

application(s)

cleaning products
cosmetics
food and beverages
personal care

format

neat

SMILES string

[Na+].[Na+].Cc1cc(C)c(cc1\N=N\c2cc(c3ccccc3c2O)S([O-])(=O)=O)S([O-])(=O)=O

InChI

1S/C18H16N2O7S2.2Na/c1-10-7-11(2)16(28(22,23)24)8-14(10)19-20-15-9-17(29(25,26)27)12-5-3-4-6-13(12)18(15)21;;/h3-9,21H,1-2H3,(H,22,23,24)(H,25,26,27);;/q;2*+1/p-2/b20-19+;;

InChI key

ONTQJDKFANPPKK-LLIZZRELSA-L

Related Categories

General description

Ponceau SX is classified as a synthetic food color, widely used for the maintenance and improvement of color appearance in foods.

Application

Ponceau SX may be used as a reference standard for the determination of the analyte:
  • In cosmetic products by micro-matrix solid phase dispersion and liquid chromatography coupled to tandem mass spectrometry.
  • In foodstuffs by combining high performance liquid chromatography (HPLC) with diode array detection (DAD) and ion-trap time-of-flight mass spectrometry (IT-TOF/MS).

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.

Recommended products

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WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Identification and determination of 34 water-soluble synthetic dyes in foodstuff by high performance liquid chromatography- diode array detection- ion trap time-of-flight tandem mass spectrometry.
Li XQ
Food Chemistry, 182(1-2), 316- 326 (2015)
Determination of dyes in cosmetic products by micro-matrix solid phase dispersion and liquid chromatography coupled to tandem mass spectrometry.
Guerra E, et al.
Journal of Chromatography A, 1415, 27-37 (2015)

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