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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 296 results
1

Invitrogen™ Alexa Fluor™ 594 Biocytin, Sodium Salt (Biocytin Alexa Fluor™ 594)  DFS Item

Alexa Fluor™ 594 biocytin, sodium salt (biocytin Alexa Fluor™ 594)

3

Molecular Probes™ Tetramethylrhodamine (TAMRA) Azide (Tetramethylrhodamine 5-Carboxamido-(6-Azidohexanyl)), 5-isomer  DFS Item

Tetramethylrhodamine (TAMRA) Azide (Tetramethylrhodamine 5-Carboxamido-(6-Azidohexanyl)), 5-isomer

4

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.

6

Thermo Scientific™ DyLight™ 510-LS NHS Ester

Label antibodies or other proteins for FRET and multiplex fluorescence assays using fluors with large Stokes shifts (488nm excitation; yellow to far-red emission).

7

Thermo Scientific™ DyLight™ 521-LS NHS Ester

Label antibodies or other proteins for FRET and multiplex fluorescence assays using fluors with large Stokes shifts (488nm excitation; yellow to far-red emission).

8

Thermo Scientific™ EZ-Link™ HPDP-Biotin, No-Weigh™ Format

Solubility DMF (Dimethylformamide),DMSO (Dimethylsulfoxide)
Label Type Biotin & Analogs
9

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

Thermo Scientific™ EZ-Link™ Sulfo-NHS-Biotin is a short-chain, water-soluble biotinylation reagent for labeling antibodies, proteins and other molecules that have primary amines.

Cell Permeability Cell-Impermeant
Product Type Sulfo-NHS-Biotin
Spacer Short
Label or Dye Biotin
Solubility DMF (Dimethylformamide),DMSO (Dimethylsulfoxide),Water
Chemical Reactivity Amine
Product Line EZ-Link
13

Thermo Scientific™ EZ-Link™ Pentylamine-Biotin

Biotinylate proteins or surfaces using EDC or other amine-reactive crosslinkers with this short (18.9A) biotinylation reagent.

14

Thermo Scientific™ EZ-Link™ TFPA-PEG3-Biotin

Biotinylate molecules without common functional groups for coupling with this efficient, light-activated biotinylation reagent based on tetrafluorophenyl azide.

15

Thermo Scientific™ EZ-Link™ Iodoacetyl-PEG2-Biotin

Biotinylate reduced cysteines (-SH groups) at high pH with this haloacetyl-activated, sulfhydryl-reactive biotinylation reagent containing polyethylene glycol for solubility.