Ponceau S, Bioreagenzien für die Elektrophorese, Sigma-Aldrich®
Lieferant: SIGMA-ALDRICH MICROSCOPY
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Achtung
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M-Clarity™ Qualitätsstufe = MQ200
P3504-10GEA
69
CHF
P3504-10G
P3504-50G
P3504-100G
Ponceau S, Bioreagenzien für die Elektrophorese, Sigma-Aldrich®
Ponceau S
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.
- Ponceau S has been used for membrane staining (Western blotting)
Formel:
C₂₂H₁₂N₄Na₄O₁₃S₄ MW: 760,56 g/mol Lager Temperatur: Room Temperature |
MDL Number:
MFCD00003892 CAS-Nummer: 6226-79-5 EINECS: 228-319-2 |
Spezifikation Testergebnisse
Infrared spectrum | Conforms to Structure |
Solubility (Turbidity) | Clear |
Solubility (Colour) c = 4mg/4ml; Water |
Red to Very Dark Red |
Suitability Suitable for Use as a Stain in Electrophoresis |
Suitable |
Wavelength C = 0.015 G/L, Di water |
518 - 522 nm |
Extinction Coefficient | ≥33000 |
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