Catalog #: 51013.

Product Description

5-(and-6)-FAM (full name: 5-(and-6)-Carboxyfluorescein mixed isomer) has a pKa of 6.5 and can be used as a pH indicator. Its excitation spectrum and fluorescence response to pH are similar to those of BCECF. Carboxyfluorescein can also be used as a tracer dye. The dye is membrane-impermeant and can be loaded into cells by microinjection or scrape loading.

  • λExEm (pH 9) = 492/514 nm
  • λµ (pH 9) = 82,000
  • Yellow orange solid soluble in pH>6 water
  • Store at 4°C and protect from light, especially in solution
  • C21H12O7
  • MW: 376
  • [72088-94-9]

1. Meth Enzymol 128, 65 (1986).

MSDS (PDF): MSDS 51013

100 mg

Shipment Method: Shipping and handling methods will be assessed and calculated at time of shipment based upon item(s) storage temperature conditions.

Expedited shipment may be requested at time of checkout.

Please note that products with recommended storage at 4°C or -20°C may ship at ambient temperature. This will not affect product performance. When you receive the product, place it under the recommended storage conditions.

More information about product handling and shelf life