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Santa Cruz Biotechnology Chromeo™ P503 | 1mg
Supplier: Santa Cruz Biotechnology SC364758

Chromeo™ P503 detects proteins and peptides by exhibiting a color change from blue to red. After binding to primary amines, it undergos a large shortwave spectral shift of more than 100nm that is visible to the naked eye. There is also a large increase in quantum yield that changes the non- or only weakly fluorescent dye into a bright fluorescent conjugate. The shift of the absorption & emission bands together with the increased fluorescence quantum yield effectively eliminates background from any unbound dye. In addition, because unbound the pyrylium dye is hydrolyzed during the labeling procedure, there is no need for purification following the simple one-step, room-temperature incubation. The labeled protein is ready to use immediately, and any possible background from the unbound dye is eliminated. Due to the unique conjugation mechanism, proteins labeled with Py-Dyes maintain their native charge and isoelectric point.
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