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5-Bromo-4-chloro-3-indolyl phosphate disodium salt, 1 g

5-Bromo-4-chloro-3-indolyl phosphate disodium salt, 1 g

SKU A155.3
€ 297,94
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5-Bromo-4-chloro-3-indolyl phosphate disodium salt, 1 g
Product Details
HS code: 29339980
Brand: Carl Roth
5-Bromo-4-chloro-3-indolyl phosphate, disodium salt, min. 99 %, Molar mass (M) 397,46 g/mol, Storage temp. -20 °C, CAS No. [102185-33-1], Empirical formula C8H4BrClNO4PNa2 · 1,5 H2O


5-Bromo-4-chloro-3-indolyl phosphate disodium salt ≥99 %

In combination with NBT ideal for colorimetric detection of alkaline phosphatase activity, in particular in immunoblot procedures.



Technische informatie
Toepassing Western, in situ, Histochemistry
Enzyme Alkaline phosphatase
Bewijs Colour (brown-violet)
Signaalproduct Precipitate (Blot)
Toepassing Western, in situ, histochimie
Assay protocol for use of BCIP/NBT in immunoblot procedures:

Stock solutions (All solutions are stable for at least 1 year at 4 °C):
0.5 g NBT in 10 ml 70 % dimethylformamide;
0.5 g BCIP (p-toluidine salt) in 10 ml 100 % dimethylformamide.
Incubation buffer for alkaline phosphatase:
100 mM NaCl, 5 mM MgCl2,100 mM Tris (pH 9.5).
Fresh substrate solution: 66 μl NBT stock solution + 10 ml incubation buffer, mix well, add 33 μl BCIP stock solution. Use within 1 hour.
Blot development: Approx. 10 ml substrate solution per 15 x 15 cm2 membrane surface. Develop at room temperature until bands become visible (approx. 30 mins).
Reaction stop: Rinse with PBS/20 mM EDTA.


Detection of peroxidase activity (Immunoassay):

Dissolve 1 mg TMB in 0.1 ml dimethylsulfoxide (Art. No. 4720); add 9.9 ml of a 0.1 M sodium acetate solution (pH 6.0) (Powder: Art. No. 6779), filter and add H2O2 (Art. No. 8070) (final concentration 0.01 %).

Always prepare freshly!

Incubation 10-30 mins at room temperature (approx. 50 μl per microtitre well; finally add 50 μl 1 M H2SO4, Art. No. X873, per well).
Photometric quantitation at 450 nm.

Reference: Bos E.S. et al. (1981) J. Immunoassay 2, (3/4), 187.


Appearance almost white powder
Assay (titr.) ≥99.0 %
Water (KF) 5.8-7.8 %
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