Biocytin TMR, CF® 640R Dye

Supplier: Biotium

Synonyms: Biocytin conjugates5-(&-6)-Tetramethylrhodamine Biocytin

92007
75784-060EA 388.67 USD
75784-060
Biocytin TMR, CF® 640R Dye
Biocytin TMR

CF®640R, A highly photostable far-red dye


  • Best photostability among Cy®5-like dyes
  • Yields highly fluorescent protein conjugates
  • Compatible with TIRF and FLIMP super-resolution microscopy


CF® dye biocytin is a cell-impermeant fixable polar tracer that is a conjugate of CF® dye and biotin with an aldehyde-fixable primary amine. Polar tracers are commonly used to investigate cell-cell and cell-liposome fusion as well as membrane permeability and transport through gap junctions or cell uptake during pinocytosis.


Stock solutions may be prepared in DMF or DMSO.


CF® dye biocytin is available in the following colors: CF®488A, CF®568, CF®594, and CF®640R.


Caution: Store at –20 °C, protected from light.

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Specification Test Results

Abs/Em Maxima 642/662 nm
Extinction coefficient 105,000
Molecular weight ~ 832
Excitation laser line 633 nm, 635 nm or 640 nm
Replaces Alexa Fluor® 647, ATTO 647N, Cy®5, DyLight® 649

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