SNAP-Surface 649 is a photostable fluorescent substrate that can be used to label SNAP-tag® fusion proteins on cell surfaces and in solution

This substrate (BG-649) is based on the Dyomics dye DY-649P1 and is suitable for excitation with a 650 nm diode laser or use with Cy5 filter sets. It has an excitation maximum at 655 nm and emission maximum at 676 nm. This package includes 50 nmol of SNAP-Surface 649 substrate, sufficient to make 10 ml of a 5 μM SNAP-tag fusion protein labeling solution.