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BCIP -t(Biochemical Reagent) BR100 5-Bromo-4-chloro-3-phosphate-p-toluidine salt[ 6578-6-9 ] f.w.: 433.6 daltons |
BCIP-T (5-bromo-4-chloro-3-indolyl phosphate, p-toluidine salt) is a chromogenic substrate for alkaline phosphatase used in conjunction with the oxidant NBT (nitro blue tetrazolium) to enhance blue color development. Alkaline phosphatase catalyses the removal of a phosphate group from BCIP-T, generating a product that oxidizes and dimerizes to dibromodichloro indigo. The reducing equivalents produced during the dimerization reaction reduce NBT to an insoluble purple dye, diformazan.
1.J. Sambrook, D. W. Russell, Molecular Cloning: A Laboratory Manual, the Third edition (Cold Spring Harbor Laboratory Press, Cold Spring Harbor, New York, 16.42, 2001).