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Merck
CN

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

Key Documents

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InChI key

FUGCXLNGEHFIOA-ZPZFBZIMSA-L

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+;;

SMILES string

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

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

mp

>300 °C (lit.)

application(s)

cleaning products
cosmetics
food and beverages
personal care

format

neat

Quality Level

100

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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.

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.

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.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
BCCL5738
BCCH1821
BCBD1293

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Luchao Qi et al.
IEEE transactions on bio-medical engineering, 67(4), 1074-1082 (2019-07-25)
Invasiveness research is an essential step in breast cancer metastasis. The application of high-frequency ultrasound microbeam stimulation (HFUMS) offers a manner of determining the invasion potential of human breast cancer cells by eliciting the elevation of transient cytoplasmic calcium ions
Synthetic Dyes in Biology, Medicine And Chemistry (2012)
Soybean peroxidase-mediated degradation of an azo dye?a detailed mechanistic study.
Ali L, et al.
BMC Biochemistry, 14(1), 35-35 (2013)
Qinghua Hu et al.
Journal of molecular and cellular cardiology, 139, 113-123 (2020-01-27)
Transient receptor potential canonical 1 (TRPC1) protein is abundantly expressed in cardiomyocytes. While TRPC1 is supposed to be critically involved in cardiac hypertrophy, its physiological role in cardiomyocytes is poorly understood. We investigated the subcellular location of TRPC1 and its
Ponceau 6R dye decoloration and chromate reduction simultaneously in acid medium.
Ahmed S M, et al.
Arabian Journal of Chemistry, 8(4), 500-505 (2015)
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