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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 292 results
1

Thermo Scientific™ EZ-Link™ Sulfo-NHS-LC-Biotin

Thermo Scientific™ EZ-Link™ Sulfo-NHS-LC-Biotin is an intermediate-length, water-soluble biotinylation reagent for labeling antibodies, proteins and other molecules that have primary amines.

Cell Permeability Cell-Impermeant
Product Type Sulfo-NHS-LC-Biotin
Spacer Mid-length
Label or Dye Biotin
Solubility DMF (Dimethylformamide),DMSO (Dimethylsulfoxide),Water
Chemical Reactivity Amine
Product Line EZ-Link™
7

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
9

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
11

MilliporeSigma™ Novagen™ D-Desthiobiotin

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

12

Molecular Probes™ Alexa Fluor™ 594 C5 Maleimide  DFS Item

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

13

Molecular Probes™ Alexa Fluor™ 568 Hydrazide, for microinjection  DFS Item

Alexa Fluor™ 568 Hydrazide is useful as a cell tracer and as a reactive dye for labeling aldehydes or ketones in polysaccharides or glycoproteins.

14

Molecular Probes™ Alexa Fluor™ 532 C5 Maleimide  DFS Item

Alexa Fluor™ 532 C5 Maleimide is a bright, yellow fluorescent dye with excitation ideally suited for the frequency-doubled Nd:YAG laser line.

15

Molecular Probes™ Alexa Fluor™ 594 Azide (Alexa Fluor™ 594 Carboxamido-(6-Azidohexanyl), Triethylammonium Salt), mixed isomers  DFS Item

Alexa Fluor™ 594 Azide (Alexa Fluor™ 594 Carboxamido-(6-Azidohexanyl), Triethylammonium Salt), mixed isomers