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™

Molecular Probes™ Alexa Fluor™ 555 Azide, Triethylammonium Salt

Alexa Fluor™ 555 azide, triethylammonium salt

Molecular Probes™ Alexa Fluor™ 555 alkyne, Triethylammonium Salt

Alexa Fluor™ 555 alkyne, triethylammonium salt

Invitrogen™ Alexa Fluor™ 488 NHS Ester (Succinimidyl Ester)

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

Invitrogen™ Alexa Fluor™ 532 NHS Ester (Succinimidyl Ester)

Alexa Fluor™ 532 is a bright yellow dye with excitation ideally suited for the frequency-doubled Nd:YAG laser line.

Invitrogen™ Alexa Fluor™ 568 NHS Ester (Succinimidyl Ester)

Alexa Fluor™ 568 is a bright orange dye. Used for stable signal generation in imaging and flow cytometry, Alexa Fluor™ 568 dye is water soluble and pH-insensitive from pH 4 to pH 10.

Invitrogen™ Alexa Fluor™ 633 NHS Ester (Succinimidyl Ester)

Alexa Fluor™ 633 is a bright and photostable far-red dye with excitation ideally suited to the 633 nm laser line.

Invitrogen™ Alexa Fluor™ 633 C₅ Maleimide

Alexa Fluor™ 633 is a bright, red fluorescent dye with excitation ideally suited to the 633 nm laser line.

Invitrogen™ Alexa Fluor™ 555 Hydrazide

Alexa Fluor™ 555 Hydrazide is useful as a cell tracer and as a reactive dye for labeling aldehydes or ketones in polysaccharides or glycoproteins.

Invitrogen™ Alexa Fluor™ 660 C₂ Maleimide

Used for stable signal generation in imaging and flow cytometry, Alexa Fluor™ 660 dye is water soluble and pH-insensitive from pH 4 to pH 10.

Invitrogen™ Alexa Fluor™ 568 C₅ Maleimide

Alexa Fluor™ 568 is a bright, orange/red fluorescent dye with excitation ideally suited for the 568 nm laser line on the Ar-Kr mixed-gas laser.

Molecular Probes™ 7-Amino-4-Methylcoumarin, reference standard

7-Amino-4-methylcoumarin (AMC) can be used as a fluorescence reference standard for AMC-based enzyme substrates including AMC-based caspase substrates. | 175.2 g/mol

Invitrogen™ Alexa Fluor™ 660 NHS Ester (Succinimidyl Ester)

Alexa Fluor™ 660 is a bright and photostable far-red dye with excitation ideally suited to the 633 or 647 nm laser line.