Skip to Content
Merck
CN
All Photos(2)

Documents

C0644

Sigma-Aldrich

Crystal Ponceau 6R

≥96% purity, powder

Synonym(s):

Acid Red 44, Brilliant Crystal Scarlet, Crystal Scarlet, Ponceau 6R

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Empirical Formula (Hill Notation):
C20H12N2Na2O7S2
CAS Number:
2766-77-0
Molecular Weight:
502.43
Colour Index Number:
16250
EC Number:
220-441-4
MDL number:
MFCD00013279
UNSPSC Code:
12171500
PubChem Substance ID:
24892265
NACRES:
NA.47

product name

Crystal Ponceau 6R, Dye content ≥70 %

form

powder

Quality Level

100

composition

Dye content, ≥70%

mp

>300 °C (lit.)

solubility

water: soluble 10 mg/mL, dark red

εmax

≥300 at 508-512 nm in water

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

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

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+;;

InChI key

FUGCXLNGEHFIOA-ZPZFBZIMSA-L

Gene Information

human ... PTPN1(5770) , PTPRF(5792)

Looking for similar products? Visit Product Comparison Guide

Related Categories

Application

Crystal Ponceau 6R has been used in the MSB (martius yellow–crystal scarlet–methyl blue) staining procedure for the staining of collagen fibers and erythrocytes.

Biochem/physiol Actions

Crystal Ponceau 6R is mainly used in the MSB (martius yellow–crystal scarlet–methyl blue) staining procedure for the staining of connective tissue and fibrin.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Handbook of Histopathological and Histochemical Techniques null
Histamine, a vasoactive agent with vascular disrupting potential, improves tumour response by enhancing local drug delivery.
Brunstein F, et al.
British Journal of Cancer, 95, 1663-1663 (2006)
Combined orcein and martius scarlet blue (OMSB) staining for qualitative and quantitative analyses of atherosclerotic plaques in brachiocephalic arteries in apoE/LDLR-/- mice.
Gajda M, et al.
Histochemistry and Cell Biology, 1538-1538 (2017)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service