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141194

Ponceau S

Name: Ponceau S
Brand: SIAL

Dye content 75 %

Synonym(s):

3-Hydroxy-4-(2-sulfo-4-[4-sulfophenylazo]phenylazo)-2,7-naphthalenedisulfonic acid sodium salt

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About This Item

Empirical Formula (Hill Notation):

C₂₂H₁₂N₄Na₄O₁₃S₄

CAS Number:

6226-79-5

Molecular Weight:

760.57

UNSPSC Code:

12171500

NACRES:

NA.47

PubChem Substance ID:

24848493

EC Number:

228-319-2

Colour Index Number:

27195

MDL number:

MFCD00003892

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Properties

form

powder

Quality Segment

200

composition

Dye content, 75%

technique(s)

microbe id | staining: suitable

λ_max

352 nm, 520 nm (2nd)

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].[Na+].[Na+].[Na+].Oc1c(\N=N\c2ccc(cc2S([O-])(=O)=O)\N=N\c3ccc(cc3)S([O-])(=O)=O)c4ccc(cc4cc1S([O-])(=O)=O)S([O-])(=O)=O

InChI

1S/C22H16N4O13S4.4Na/c27-22-20(43(37,38)39)10-12-9-16(41(31,32)33)6-7-17(12)21(22)26-25-18-8-3-14(11-19(18)42(34,35)36)24-23-13-1-4-15(5-2-13)40(28,29)30;;;;/h1-11,27H,(H,28,29,30)(H,31,32,33)(H,34,35,36)(H,37,38,39);;;;/q;4*+1/p-4/b24-23+,26-25+;;;;

InChI key

KQHKSGRIBYJYFX-WNDMICSESA-J

Description

General description

Ponceau S (C.l. 27195) is an anionic, very hydrophilic disazo dye. It is also known as fast ponceau 2B.

Application

Ponceau S is widely used to stain proteins on gel electropherograms. It is a suitable stain for proteins adsorbed onto nitrocellulose membranes. It also has applications in botanical staining manuals as a stain for sieve plate elements.

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Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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