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96365

Ponceau 6R

analytical standard

Synonym(s):

Crystal Ponceau 6R, Acid Red 44, Brilliant Crystal Scarlet, Crystal Scarlet, Ponceau 6R

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About This Item

Empirical Formula (Hill Notation):
C20H12N2Na2O7S2
CAS Number:
2766-77-0
Molecular Weight:
502.43
NACRES:
NA.24
E Number:
E126
PubChem Substance ID:
329770499
UNSPSC Code:
85151701
EC Number:
220-441-4
MDL number:
MFCD00013279
Colour Index Number:
16250
Technical Service
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grade

analytical standard

Quality Segment

100

assay

≥98.0% (HPLC)

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

mp

>300 °C (lit.)

application(s)

cleaning products
cosmetics
food and beverages
personal care

format

neat

SMILES string

[Na+].[Na+].Oc1ccc2cc(cc(c2c1\N=N\c3cccc4ccccc34)S([O-])(=O)=O)S([O-])(=O)=O

InChI

1S/C20H14N2O7S2.2Na/c23-17-9-8-13-10-14(30(24,25)26)11-18(31(27,28)29)19(13)20(17)22-21-16-7-3-5-12-4-1-2-6-15(12)16;;/h1-11,23H,(H,24,25,26)(H,27,28,29);;/q;2*+1/p-2/b22-21+;;

InChI key

FUGCXLNGEHFIOA-ZPZFBZIMSA-L

General description

Ponceau 6R is a red azo dye which is widely used as a food colorant and also used in histology staining. It is soluble in water and slightly soluble in ethanol.

Application

Ponceau 6R (P6R) has been used:
  • As a reference standard for the determination of synthetic food and beverages colorants by high-performance liquid chromatography coupled with diode-array detector.
  • As a model compound for detailed study of the mechanism of an azo-dye degradation by soybean peroxidase enzyme (SBP).
It may be used as a reference standard in the determination of ponceau 6R in drinks and candy samples using reversed-phase high performance liquid chromatography (RP-HPLC).
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 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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