Skip to Content
Merck
CN

92395

Ponceau SX

analytical standard

Synonym(s):

3-(2,4-Dimethyl-5-sulfophenylazo)-4-hydroxynaphthalene-1-sulfonic acid disodium salt, Food Red 1

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Empirical Formula (Hill Notation):
C18H14N2Na2O7S2
CAS Number:
4548-53-2
Molecular Weight:
480.42
UNSPSC Code:
85151701
NACRES:
NA.24
E Number:
E125
PubChem Substance ID:
329770121
EC Number:
224-909-9
MDL number:
MFCD00046402
Colour Index Number:
14700
Beilstein/REAXYS Number:
7161700

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

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

grade

analytical standard

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

Quality Level

100

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.

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.

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
BCCM2639
BCBD9646

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service