Ponceau S 75% (dye content), Sigma-Aldrich®
Supplier: SIGMA-ALDRICH MICROSCOPYTotal Ratings: 0
Avg. Ratings: 0.0 out of 5
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Synonyms:
CI 27195
, 3-Hydroxy-4-((2-sulpho-4-((4-sulphophenyl)diazenyl)phenyl)diazenyl)naphthalene-2,7-disulphonic acid, tetrasodium salt
, 3-Hydroxy-4-(2-sulpho-4-[4-sulphophenylazo]phenylazo)-2,7-naphthalenedisulphonic acid sodium salt
, Ponceau
M-Clarity™ quality level = MQ200
Ponceau S (C.l. 27195) is an anionic, very hydrophilic disazo dye. It is also known as fast ponceau 2B. Ponceau S is widely used to stain proteins on gel electropherograms. It is a suitable stain for proteins adsorbed onto nitrocellulose membranes. It also has applications in botanical staining manuals as a stain for sieve plate elements.
Formula:
C₂₂H₁₂N₄Na₄O₁₃S₄ MW: 760.56 g/mol Storage Temperature: Ambient |
MDL Number:
MFCD00003892 CAS Number: 6226-79-5 EINECS: 228-319-2 |
Specification Test Results
Appearance (Form) | Powder |
Infrared spectrum | Conforms to Structure |
Wavelength C=0.015 G/L DI water | 518 - 522 nm |
Extinction Coefficient | ≥33000 |
Carbon | 25.9 - 43.2 % |
Nitrogen | 5.4 - 9.2 % |
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