Invitrogen™ Alexa Fluor™ 488 TFP ester, 25 mg

Invitrogen™ Alexa Fluor™ 488 TFP ester, 25 mg

Alexa Fluor® dyes are reactive molecules that can be used to add a fluorescent label to the primary amines (R-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. The resulting Alexa Fluor® conjugates exhibit brighter fluorescence and greater photostability than the conjugates of other spectrally similar fluorophores. Alexa Fluor® 488 TFP ester produces a conjugate with excitation/emission of 495/515 nm that is spectrally similar to fluorescein (FITC) and Cy2 conjugates.