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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

Thermo Scientific™ EZ-Link™ Biotin-LC-Hydrazide

Biotinylate glycoproteins (aldehydes of oxidized sugars) with this mid-length (24.7A) hydrazide-activated biotinylation reagent.

2

Thermo Scientific™ Pierce™ Dye Removal Columns

Affinity resin with spin columns to quickly bind and remove excess fluorescent dye from antibody (protein) solutions following labeling reactions.

5

Thermo Scientific™ Pierce™ Iodination Tubes

Reliably label (iodinate) proteins and peptides with iodine-125 using glass test tubes that are pre-coated (activated) with iodination reagent.

6

Thermo Scientific™ DyLight™ 488 NHS Ester

Label antibodies or other proteins as probes for fluorescence imaging assays with the full spectral range of NHS ester-activated DyLight Dyes.

Labeling Target Proteins
Content And Storage Store desiccated at -20°C, protected from light.
Product Type Dye
Label or Dye DyLight™ 488
Reactive Moiety Active Ester, Succinimidyl Ester, NHS Ester
Solubility DMF (Dimethylformamide)
Emission 518
Excitation 493
Label Type DyLight Fluors
Chemical Reactivity Amine
Product Line DyLight
7

Invitrogen™ NovaFluor™ Antibody Conjugation Kits  DFS Item

Get the most out of your panel design by conjugating antibodies to NovaFluor dyes specifically designed for spectral hygiene to have narrow emission spectra and minimal cross-laser excitation.

Product Line NovaFluor
8

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

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

Product Type NHS Ester (Succinimidyl Ester)
Label or Dye Alexa Fluor™ 633
Emission 639 nm
Excitation 621 nm
9

Molecular Probes™ Tetramethylrhodamine (TAMRA) Alkyne (5-Carboxytetramethylrhodamine, Propargylamide), 5-isomer  DFS Item

Tetramethylrhodamine (TAMRA) Alkyne (5-Carboxytetramethylrhodamine, Propargylamide), 5-isomer

10

Invitrogen™ Alexa Fluor™ 546 NHS Ester (Succinimidyl Ester)  DFS Item

Alexa Fluor™ 546 is a bright yellow dye. Used in imaging and flow cytometry, Alexa Fluor™ 546 dye is water soluble and pH-insensitive from pH 4 to pH 10.

Shipping Condition Room Temperature
Content And Storage Store in freezer (-5 to -30°C) and protect from light.
Product Type Dye
Label or Dye Alexa Fluor™ 546
Reactive Moiety Active Ester, Succinimidyl Ester
Emission 570 nm
Excitation 554 nm
Label Type Alexa Fluor
Chemical Reactivity Amine
Product Line Alexa Fluor
11

Thermo Scientific™ HABA (4'-hydroxyazobenzene-2-carboxylic acid)

A colored, biotin assay reagent HABA (4'-hydroxyazobenzene-2-carboxylic acid) to measure biotinylation levels of biotinylated antibodies or proteins.

12

Invitrogen™ Texas Red™ Sulfonyl Chloride, mixed isomers  DFS Item

Texas Red™ Sulfonyl Chloride, mixed isomers

Shipping Condition Room Temperature
Content And Storage Store in freezer (-5 to -30°C) and protect from light.
Product Type Sulfonyl Chloride
Label or Dye Texas Red™
Reactive Moiety Sulfonyl Chloride
Emission 615
Excitation 595
Label Type Classic Dyes
Chemical Reactivity Amine
Product Line Texas Red
14

Thermo Scientific™ EZ-Link™ Amine-PEG4-Desthiobiotin, No-Weigh™ Format

Thermo Scientific™ EZ-Link™ Amine-PEG4-Desthiobiotin No-Weigh™ Format is a pegylated amine compound whose biotin-like group is elutable from streptavidin, making it ideal for carbodiimide (EDC) conjugation to carboxylates for labeling and purification.