FAM SE, 5 and 6 isomers


Catalog #: 90024.

Product Description

5(6)-FAM SE (full name: 5-(and-6)-Carboxyfluorescein, succinimidyl ester mixed isomers) is an amine-reactive green fluorescent dye widely used for labeling proteins or other molecules that contain a primary or secondary aliphatic amine. The coupling reaction is usually carried out at pH 8-9.5. The amide linkage from the coupling reaction is much more stable than the thiourea linkage formed from the coupling of an amine and an isothiocyanate.

  • λExEm = 495/519 nm
  • Yellow solid soluble in DMSO or DMF
  • Store at -20°C and protect from light
  • C25H15NO9
  • MW: 473.4
  • [117548-22-8]


MSDS (PDF): MSDS 90024

100 mg

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

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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