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Ponceau S (C.I. 27195), 10 g

Ponceau S (C.I. 27195), 10 g

SKU 5938.2
€ 35,58
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Ponceau S (C.I. 27195), 10 g
Product Details
CAS number: 9001-99-4
HS code: 32041200
Brand: Carl Roth
Ponceau S (C.I. 27195), for histology and electrophoresis, Molar mass (M) 760,56 g/mol, CAS No. [6226-79-5], EG-Nr. 228-319-2, Empirical formula C22H12N4Na4O13S4


Ponceau S (C.I. 27195) for histology and electrophoresis
Gebruiksinstructies

Staining of NC membranes: 0.2-2 % Ponceau S in 3 % trichloroacetic acid (Art. No. 8789.1) + 3 % sulphosalicylic acid (Art. No. 4119.1), incubate for 1-5 mins. at room temperature. Enhance contrast by incubation in water acidified by a few drops acetic acid.

Staining of PVDF membranes: 0.1-1 % Ponceau S in 10 % acetic acid (Art. No. 6755.1), incubate 1-5 mins. at room temperature. Suitable for rapid control of transfer in Western blot, PVDF membrane should not be completely dried before immunodetection.

Prior to Western blot analysis decolourise in PBS (Art. No. 1058.1) or TBS (Art. No. 1060) for 10-20 mins. at room temperature.




Absorption max. (in H2O) 517-523 nm
Specific extinction E 1 %/1 cm >460
Loss on drying (110 °C) ≤10 %
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