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Merck
CN

C0644

Crystal Ponceau 6R

≥96% purity, powder

Synonym(s):

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

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About This Item

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

Key Documents

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Product Name

Crystal Ponceau 6R, Dye content ≥70 %

InChI key

FUGCXLNGEHFIOA-ZPZFBZIMSA-L

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+;;

SMILES string

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

form

powder

composition

Dye content, ≥70%

technique(s)

microbe id | staining: suitable

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

Quality Level

100

Gene Information

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

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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.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
SHBS3496
SHBR6170
SHBQ8266
SHBP1786
SHBQ1939

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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)

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