Protein Labeling Reagents

Thermo Scientific™ Alexa Fluor™ 420 NHS Ester (Succinimidyl Ester)

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Alexa Fluor 420 NHS Ester is an amine-reactive dye optimized for multiplex IHC and spatial biology. A long Stokes shift and 420/500 ex/em make it a good match for the CFP filter.

Molecular Probes™ Alexa Fluor™ 488 5-SDP Ester (Alexa Fluor™ 488 Sulfodichlorophenol Ester)

Alexa Fluor™ 488 5-SDP ester (Alexa Fluor™ 488 sulfodichlorophenol ester)

Atto 633 NHS Ester BioReagent, Suitable for Fluorescence, 90% (Coupling to Amines), MilliporeSigma™ Supelco™

Invitrogen™ Alexa Fluor™ 430 NHS Ester (Succinimidyl Ester)

Used for stable signal generation in imaging and flow cytometry, Alexa Fluor™ 430 dye is water soluble and pH-insensitive from pH 4 to pH 10.

Invitrogen™ Alexa Fluor™ 488 C₅ Maleimide

Alexa Fluor™ 488 is a bright, green fluorescent dye with excitation ideally suited to the 488 nm laser line.

Invitrogen™ Alexa Fluor™ 594 C₅ Maleimide

Alexa Fluor™ 594 is a bright, red fluorescent dye that can be excited using the 561 nm or 594 nm laser lines.

Invitrogen™ Alexa Fluor™ 514 NHS Ester (Succinimidyl Ester)

Used for stable signal generation in imaging and flow cytometry, Alexa Fluor™ 514 dye is water soluble and pH-insensitive from pH 4 to pH 10.

Invitrogen™ Alexa Fluor™ 488 5-TFP (Alexa Fluor™ 488 Carboxylic Acid, 2,3,5,6-Tetrafluorophenyl Ester), 5-isomer

Alexa Fluor™ 488 5-TFP (Alexa Fluor™ 488 Carboxylic Acid, 2,3,5,6-Tetrafluorophenyl Ester), 5-isomer

Molecular Probes™ Alexa Fluor™ 610-X NHS Ester (Succinimidyl Ester)

Used for stable signal generation in imaging and flow cytometry, Alexa Fluor™ 610-X dye is water soluble and pH-insensitive from pH 4 to pH 10.

Molecular Probes™ Alexa Fluor™ 790 NHS Ester (Succinimidyl Ester)

Alexa Fluor™ 790 is a bright and photostable near-IR dye that is spectrally similar to indocyanine green (ICG) and the IRDye™ 800 dye.

Invitrogen™ Alexa Fluor™ 405 NHS Ester (Succinimidyl Ester)

Alexa Fluor™ 405 is a blue-fluorescent dye optimal for use with the 405 nm violet laser.

Molecular Probes™ Alexa Fluor™ 750 C₅ Maleimide

Alexa Fluor™ 750 is a bright, near-infrared fluorescent dye with excitation ideally suited for the 633 nm laser line or dye-pumped laser excitation.

Molecular Probes™ Alexa Fluor™ 350 C₅ Maleimide

Alexa Fluor™ 350 is a blue fluorescent dye with moderate photostability and excitation that matches the 350 nm laser line.

Invitrogen™ Alexa Fluor™ 647 Hydroxylamine

Alexa Fluor™ 647 Hydroxlamine is useful as a cell tracer and as a reactive dye for labeling aldehydes or ketones in polysaccharides or glycoproteins.

Invitrogen™ Alexa Fluor™ 633 Hydrazide

Alexa Fluor™ 633 Hydrazide is useful as a cell tracer and as a reactive dye for labeling aldehydes or ketones in polysaccharides or glycoproteins.