Ponceau 6R

Names
Other names

Ponceau 6R

Identifiers

CAS Number

* 2766-77-0 Y

3D model (JSmol)

* Interactive image

ChEMBL |

* ChEMBL368082

ChemSpider |

* 16736230

PubChem CID

* 165025

UNII |

* W8UOR0932R Y

SMILES

* [Na+].[Na+].[Na+].[Na+].Oc1cc(c2ccccc2c1N=Nc3c(O)c(cc4cc(cc(c34)S(=O)(=O)[O-])S(=O)(=O)[O-])S(=O)(=O)[O-])S(=O)(=O)[O-]

Properties

Chemical formula

| C20H12N2Na2O7S2
Molar mass | 502.42 g·mol−1

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Ponceau 6R, or Crystal ponceau 6R, Crystal scarlet, Brilliant crystal scarlet 6R, Acid Red 44, or C.I. 16250, is a red azo dye. It is soluble in water and slightly soluble in ethanol. It is used as a food dye, with E number E126. It is also used in histology, for staining fibrin with the MSB Trichrome stain. It usually comes as disodium salt.

Amaranth is a closely related azo dye, also usable in trichrome staining.

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*[CID]: Compound ID