Ponceau S

SIAL/P3504 - BioReagent, suitable for electrophoresis

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

CAS Number: 6226-79-5
Empirical Formula (Hill Notation): C₂₂H₁₂N₄Na₄O₁₃S₄
Molecular Weight: 760.57
EC Number: 228-319-2
MDL Number: MFCD00003892
Linear Formula: C₂₂H₁₂N₄Na₄O₁₃S₄
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-P3504-10G	10 g	$52.00 1/EA	Add To Favorites
45-P3504-50G	50 g	$160.00 1/EA	Add To Favorites
45-P3504-100G	100 g	$238.00 1/EA	Add To Favorites

This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: P3504-100G

Properties
Descriptions
Safety Info.
Basic Data

ε (extinction coefficient)	≥330000 at 518-522 nm in deionized water at 0.015 g/L
application(s)	diagnostic assay manufacturing hematology histology
color	red to very dark red
form	powder
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
product line	BioReagent
Quality Level	200
SMILES string	[Na+].[Na+].[Na+].[Na+].Oc1c(N=Nc2ccc(cc2S([O-])(=O)=O)N=Nc3ccc(cc3)S([O-])(=O)=O)c4ccc(cc4cc1S([O-])(=O)=O)S([O-])(=O)=O
solubility	H₂O: 1 mg/mL
storage temp.	room temp
technique(s)	electrophoresis: suitable

Application:	Ponceau S has been used for membrane staining (Western blotting.
General description:	Ponceau S is the sodium salt of a diazo dye. It is used to make a stain for rapid reversible staining of protein bands on nitrocellulose or PVDF membranes (Western blots) and also for staining protein on cellulose acetate membranes. The stain is reversed with water washes and aids in subsequent immunological detection. The following are two common stain formulations: 0.1% Ponceau S (w/v) in 5% acetic acid 2% Ponceau S (w/v) in 30% TCA, 30% sulfosalicylic acid
Packaging:	10, 50, 100 g in glass bottle

Hazard Codes	Xi
Risk Statements	36/37/38
Safety Statements	26-36
RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

Storage Temp.	room temp
Colour Index Number	27195
UNSPSC	12171500

To Order From a Quote