Ponceau S ≥75% (dye content), dark powder

Supplier: MP Biomedicals
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Synonyms: CI 271953-Hydroxy-4-((2-sulpho-4-((4-sulphophenyl)diazenyl)phenyl)diazenyl)naphthalene-2,7-disulphonic acid, tetrasodium salt3-Hydroxy-4-(2-sulpho-4-[4-sulphophenylazo]phenylazo)-2,7-naphthalenedisulphonic acid sodium saltPonceau

ICNA0215194210EA 30.8 GBP
ICNA0215194210 ICNA0215194280 ICNA0215194250
Ponceau S ≥75% (dye content), dark powder
Ponceau S

Ponceau S is used as protein stain for electrophoresis.


Readily soluble in water.

Formula: C₂₂H₁₂N₄Na₄O₁₃S₄
MW: 760.56 g/mol
Melting Pt: 300 °C (lit.)
Storage Temperature: Ambient
MDL Number: MFCD00003892
CAS Number: 6226-79-5
EINECS: 228-319-2

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Specification Test Results

Identity Test Passes
Dye Content ~75%
UV/VIS: l max (water) 517 - 523 nm

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