Invitrogen™ BODIPY™ 493/503 NHS Ester (Succinimidyl Ester)
On demandInvitrogen™ BODIPY™ 493/503 NHS Ester (Succinimidyl Ester)
BODIPY® 493/503 dye is bright, green fluorescent dye with similar excitation and emission to fluorescein (FITC) or Alexa Fluor® 488 dye. It has a high extinction coefficient and fluorescence quantum yield and is relatively insensitive to solvent polarity and pH change. In contrast to the highly water soluble fluorophores Alexa Fluor® 488 dye and fluorescein (FITC), BODIPY® dyes have unique hydrophobic properties ideal for staining lipids, membranes, and other lipophilic compounds. BODIPY® 493/503 dye has a relatively long excited-state lifetime (typically 5 nanoseconds or longer), which is useful for fluorescence polarization-based assays and a large two-photon cross-section for multiphoton excitation. In addition to reactive dye formulations, we offer BODIPY® 493/503 dye conjugated to a variety of antibodies, peptides, proteins, tracers, and amplification substrates optimized for cellular labeling and detection.
The NHS ester (or succinimidyl ester) of BODIPY® 493/503 is the most popular tool for conjugating the dye to a protein or antibody. NHS esters can be used to label the primary amines (R-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. The resulting BODIPY® 493/503 conjugates exhibit bright fluorescence, narrow emission bandwidths, and relatively long excited-state lifetimes, which can be useful for fluorescence polarization assays and two-photon excitation (TPE) microscopy.
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