DAPI from Biotium, Inc.

Supplier Page

Supplier Page from
Biotium, Inc. for
DAPI

Description

DAPI (4',6-Diamidino-2-Phenylindole, dihydrochloride) is a popular blue DNA dye that is used as a nuclear counterstain in fluorescence microscopy, chromosome staining and flow cytometry. The dye binds to the minor groove of dsDNA with approximately 20-fold fluorescence enhancement, with higher affinity for A-T rich regions. Also see DAPI dilactate, a more water soluble form of the dye. 
  • Classic blue nuclear counterstain for fixed cells
  • Can be used at higher concentrations to stain live cells
  • λExEm = 358/461 nm (with DNA)
  • Off-white solid soluble in H2O
  • Store at 4°C and protect from light, especially in solution
  • C16H17Cl2N5
  • MW = 350.25
  • [28718-90-3]