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Ponceau S CAS 6226-79-5

Ponceau S carries a negative charge and can combine with positively charged amino acid residues. At the same time, Lichun red can also combine with the non-polar regions of proteins, thus forming red bands. The staining of proteins by Lichun red is reversible. After staining, it can be washed off with distilled water, PBS or other appropriate solutions

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Model:
6226-79-5
Brand:
futurechemical
Code:
6226-79-5

Product Description

Ponceau S Basic information
Product Name:	Ponceau S
CAS:	6226-79-5
MF:	C22H17N4NaO13S4
MW:	696.62
EINECS:	228-319-2
Product Categories:	P;Stains and Dyes;Organics;Stains&Dyes, A to
Mol File:	6226-79-5.mol
Ponceau S Chemical Properties
bulk density	660kg/m3
density	1.01 g/mL at 20 °C
refractive index	n20/D 1.338
storage temp.	Store at RT.
solubility	H2O: soluble1mg/mL
form	Powder/Solid
Colour Index	27195
color	Red-brown
PH	9.0 (10g/l, H2O, 20℃)
Water Solubility	10 g/L
ε(extinction coefficient)	≥330000 at 518-522nm in deionized water at 0.015g/L
λmax	352 nm
λmax	520 nm (2nd)
Stability:	Stable. Incompatible with strong oxidizing agents.
CAS DataBase Reference	6226-79-5(CAS DataBase Reference)
EPA Substance Registry System	2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[[2-sulfo-4-[(4-sulfophenyl)azo]phenyl]azo]-, tetrasodium salt (6226-79-5)