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Protein Labeling Reagents

Various reagents designed to selectively label target proteins. Products include classic dyes, radioisotope labels, biotinylation reagents, fluorescent labels, molecular probes, assays, and labeling kits.
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1 – 15 of 298 results
1

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

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.

4

MilliporeSigma™ Calbiochem™ β-Cyclodextrin

Homogeneous cyclic α1,4-linked D-glucopyranose units in a seven-member ring. Forms clathrates. Suitable for use with dansyl chloride to form water-soluble complexes for fluorescent labeling of proteins.

Content And Storage Following reconstitution, aliquot and freeze (−20°C). Stock solutions are stable for up to 3 months at −20°C
Format Solid
Color White
Molecular Formula C42H70O35
8

Atto 565 NHS Ester BioReagent, Suitable for Fluorescence, 70% (Coupling to Amines), MilliporeSigma™ Supelco™

Fluorescence of bioconjugates; employed in fluorescence resonance energy transfer, FRET, experiments.

Content And Storage -20°C
13

Thermo Scientific™ DyLight™ 488, Free Acid  DFS Item

Use these non-activated, carboxylic acid forms of DyLight Dyes as controls and calibration standards in fluorescence imaging applications.

14

MilliporeSigma™ Novagen™ D-Desthiobiotin

Provides elution of Strep·Tag™ II proteins from biotin-binding site of Strep·Tactin™ resins

15

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

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.