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P2395

Sigma-Aldrich

Ponceau Xylidine

Dye content ≥60 %

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Synonym(s):
Acid Red 26, Ponceau 2 R, Xylidine ponceau, Xylidine ponceau 2R
Empirical Formula (Hill Notation):
C18H14N2Na2O7S2
CAS Number:
Molecular Weight:
480.42
Colour Index Number:
16150
Beilstein:
5709350
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.47

form

powder

Quality Level

composition

Dye content, ≥60%

solubility

water: 10 mg/mL, clear, red

εmax

18-22 at 503-508 nm in water

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].[Na+].Cc1ccc(\N=N\c2c(O)c(cc3cc(ccc23)S([O-])(=O)=O)S([O-])(=O)=O)c(C)c1

InChI

1S/C18H16N2O7S2.2Na/c1-10-3-6-15(11(2)7-10)19-20-17-14-5-4-13(28(22,23)24)8-12(14)9-16(18(17)21)29(25,26)27;;/h3-9,21H,1-2H3,(H,22,23,24)(H,25,26,27);;/q;2*+1/p-2/b20-19+;;

InChI key

YJVBLROMQZEFPA-LLIZZRELSA-L

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General description

Ponceau Xylidine is a red powder which is easily soluble in water. It is used as a substitute for cochineal dye.

Application

Ponceau Xylidine has been used as part of the Goldner′s trichome stain to stain thin sections. It has also been used to prepare Fuchsin-Ponceau solution to stain an amyotrophic lateral sclerosis tissue-engineered skin model (ALS-TES).

Pictograms

Health hazard

Signal Word

Warning

Hazard Statements

Hazard Classifications

Carc. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

CAS No.

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