[CAS NO. 6226-79-5] PonceauS

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PRODUCTS SPECIFICATIONS [6226-79-5]

Catalog

HY-12489

Brand

MCE

CAS

6226-79-5

DESCRIPTION [6226-79-5]

Overview

MDL	MFCD00003892
Molecular Weight	760.57
Molecular Formula	C22H12N4Na4O13S4
SMILES	O=S(C1=C(O)C(/N=N/C2=CC=C(/N=N/C3=CC=C(S(=O)(O[Na])=O)C=C3)C=C2S(=O)(O[Na])=O)=C4C=CC(S(=O)(O[Na])=O)=CC4=C1)(O[Na])=O

For research use only. We do not sell to patients.

Summary

Ponceau S (Acid Red 112) is the most commonly used stain for Western blotting. Ponceau S is applied as an acidic aqueous solution. Ponceau S is compatible with antibody-antigen binding, and stains the proteins on the membrane red ^[1] ^[2] .

Appearance

Solid

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	6 months
	-20°C	1 month

Solvent & Solubility

In Vitro:

DMSO : 100 mg/mL ( 131.48 mM ; Need ultrasonic)

H ₂ O : 35.71 mg/mL ( 46.95 mM ; Need ultrasonic)

Preparing
Stock Solutions

Concentration Solvent Mass	1 mg	5 mg	10 mg

1 mM	1.3148 mL	6.5740 mL	13.1480 mL
5 mM	0.2630 mL	1.3148 mL	2.6296 mL
10 mM	0.1315 mL	0.6574 mL	1.3148 mL

* Please refer to the solubility information to select the appropriate solvent.

In Vivo:

1.

Add each solvent one by one: PBS

Solubility: 8.33 mg/mL (10.95 mM); Clear solution; Need ultrasonic and warming

* All of the co-solvents are available by MCE.

References

Synonyms

2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[2-[2-sulfo-4-[2-(4-sulfophenyl)diazenyl]phenyl]diazenyl]-, sodium salt (1:4)

C.I. Acid Red 112, tetrasodium salt

2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[[2-sulfo-4-[(4-sulfophenyl)azo]phenyl]azo]-, tetrasodium salt

Ponceau S

C.I. Acid Red 112

Ponceau S Extra

Ponceau Red S