Brilliant Crystal Scarlet C.I. 16250


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 Trichcomb stain. It usually comes as disodium salt.

Synonyms:                                        C.I. 16250; Acid Red 44; Ponceau 6R; Crystal Ponceau 6R; Brilliant Crystal Scarlet 

Molecular Formula:                          C20H12N2Na2O7S

Molecular Weight:                             502.43

Description:                                       Dark brown powder 

Melting Point:                                     > 300 Deg. C 

Lambda Max:                                      509-514 nm 

Dye content:                                        ~ 80%                                                   

Solubility 0.1% (Water):                    Clear red solution 

Loss on drying:                                    <20% at 110 Deg. C/ 1 hour 

Not considered harmful under normal laboratory conditions

Cas No: 2766-77-0

HS CODE: 32041983


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Additional information

Weight N/A
Pack Size

25gm, 50gm, 100gm