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Stains, Fluorescent Dyes & Histology Reagents

Ponceau xylidine

Available on request

Order Ponceau xylidine (CAS 3761-53-3) online at Zemixal: C18H14N2Na2O7S2, COA and SDS with every lot, worldwide shipping.

Pack sizes
Ponceau xylidine chemical structure
CAS number3761-53-3
FormulaC18H14N2Na2O7S2
Molar mass480.4 g/mol
Physical formPowder
HS code32049000
InChIKeyDKUHOIWLFSTHJN-UHFFFAOYSA-L
IUPAC namedisodium;4-[(2,4-dimethylphenyl)diazenyl]-3-hydroxynaphthalene-2,6-disulfonate

About Ponceau xylidine

Ponceau xylidine is part of the Zemixal stains, Fluorescent Dyes & Histology Reagents range. Identity at a glance: CAS 3761-53-3, formula C18H14N2Na2O7S2 and molar mass 480.4 g/mol. It is described as brownish red powder.

Common uses in the lab and plant

  • Histology & cytology staining
  • Microscopy
  • Clinical laboratories
  • Biological staining

Handling and storage

Classified under GHS with signal word Warning and hazard statements H351. Read the SDS before first use.

Available as 5 g, 25 g, 100 g and 1 kg. Larger or split packs can be arranged. Each lot travels with a batch certificate of analysis and a 16-section SDS. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Typical uses

  • Histology & cytology staining
  • Microscopy
  • Clinical laboratories
  • Biological staining

Applications

Specifications and identifiers

Specifications of Ponceau xylidine
Product namePonceau xylidine
Catalogue numberZX-000688
CAS number3761-53-3
IUPAC namedisodium;4-[(2,4-dimethylphenyl)diazenyl]-3-hydroxynaphthalene-2,6-disulfonate
Molecular formulaC18H14N2Na2O7S2
Molar mass480.4 g/mol
Exact mass480.0038
Physical formPowder
AppearanceBrownish red powder
H-bond donors / acceptors1 / 9
Topological polar surface area176 Ų
HS code32049000
InChIKeyDKUHOIWLFSTHJN-UHFFFAOYSA-L
SMILESCC1=CC(=C(C=C1)N=NC2=C3C=C(C=CC3=CC(=C2O)S(=O)(=O)[O-])S(=O)(=O)[O-])C.[Na+].[Na+]
PubChem CID19579
SynonymsAcid Red 26, Ponceau 2 R, Xylidine ponceau 2R, Xylidine ponceau, 4-((2,4-Dimethylphenyl)azo)-3-hydroxy-2,7-naphthalenedisulfonic acid, disodium salt, C.I. Food Red 5, Ponceau de xylidine, Ponceau Red R, Disodium 4-[(2,4-dimethylphenyl)diazenyl]-3-hydroxynaphthalene-2,6-disulfonate, disodium 4-[(E)-(2,4-dimethylphenyl)diazenyl]-3-hydroxynaphthalene-2,6-disulfonate

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS08 Health hazard
Health hazard

Signal word Warning

  • H351Suspected of causing cancer

Precautionary statements P281

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Ponceau xylidine
5 gQuoted on request
25 gQuoted on request
100 gQuoted on request
1 kgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Ponceau xylidine

Which CAS number identifies Ponceau xylidine?
Ponceau xylidine is registered under CAS 3761-53-3. You may also see it listed as Acid Red 26, Ponceau 2 R, Xylidine ponceau 2R. Our catalogue number for this item is ZX-000688.
What are the formula and molar mass of Ponceau xylidine?
For Ponceau xylidine, its formula is C18H14N2Na2O7S2 and its molar mass is 480.4 g/mol. InChIKey DKUHOIWLFSTHJN-UHFFFAOYSA-L lets you match it in any structure database.
What grade and pack sizes are available for Ponceau xylidine?
The grade and assay are confirmed on the quotation and the batch COA. Standard packs are 5 g, 25 g, 100 g, 1 kg. Larger quantities and custom packing can be quoted on request.
Which documents come with Ponceau xylidine?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Ponceau xylidine to my country?
Yes. Because Ponceau xylidine is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

Other grades with CAS 3761-53-3

Ponceau 4R
CAS
2611-82-7
Formula
C20H11N2Na3O10S3
MW
604.5 g/mol
ZX-000686

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