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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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Keyword Search:
1 – 15 of 678 results
1

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.

EDGE
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™ 488
Emission 517 nm
Excitation 494 nm
Label Type Alexa Fluor
Chemical Reactivity Amine
Product Line Alexa Fluor
2

Thermo Scientific™ NHS-Fluorescein (5/6-carboxyfluorescein succinimidyl ester), mixed isomer

Activated derivatives of green-fluorescent fluorescein dye to label antibodies, proteins and other molecules for fluorescence imaging (ex 494; em 518).

EDGE
Content And Storage Store desiccated at -20°C, protect from moisture
Product Type NHS-Fluorescein
Label or Dye FITC (Fluorescein)
Reactive Moiety Active Ester, Succinimidyl Ester, NHS Ester
Solubility DMF (Dimethylformamide)
Emission 518
Excitation 494
Label Type Classic Dyes
Chemical Reactivity Amine
Product Line Pierce
3

Invitrogen™ Alexa Fluor™ 405 NHS Ester (Succinimidyl Ester)

Alexa Fluor™ 405 is a blue-fluorescent dye optimal for use with the 405 nm violet laser.

EDGE
Shipping Condition Room Temperature
Product Type Dye
Label or Dye Alexa Fluor™ 405
Reactive Moiety Active Ester, Succinimidyl Ester
Label Type Alexa Fluor
Chemical Reactivity Amine
Product Line Alexa Fluor
4

Molecular Probes™ Alexa Fluor™ 647 Azide, Triethylammonium Salt

The far red-fluorescent Alexa Fluor™ 647 azide is reactive with terminal alkynes via a copper-catalyzed click reaction.

EDGE
5

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.

EDGE
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
6

Molecular Probes™ pHrodo™ Red, succinimidyl ester (pHrodo™ Red, SE)

New pH-sensitive pHrodo™ Red dye conjugates give faster and more accurate results than any other phagocytosis assay.

7

Molecular Probes™ Alexa Fluor™ Carboxylic Acid, tris(triethylammonium) salts

Alexa Fluor Carboxylic Acid tris(triethylammonium) salts are non-reactive forms of the Alexa Fluor dye that can be used as a reference standard for dye-conjugates. Choose from ten different Alexa Fluor free acid dyes that span the spectrum, from 350 to 750 nm, to meet your research needs.

Content And Storage Store in freezer (-5 to -30°C). Protect from light.
Reactive Moiety Free acid
Quantity 5 mg
Label Type Alexa Fluor
Product Line Alexa Fluor
8

Invitrogen™ Alexa Fluor™ 700 NHS Ester (Succinimidyl Ester)

Alexa Fluor™ 700 is a bright and photostable near-IR dye that can be excited with a xenon-arc lamp, far-red diode lasers, or dye pumped lasers operating in the 675–700 nm range.

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™ 700
Reactive Moiety Active Ester, Succinimidyl Ester
Emission 723 nm
Excitation 702 nm
Label Type Alexa Fluor
Chemical Reactivity Amine
Product Line Alexa Fluor
9

Invitrogen™ Alexa Fluor™ 750 NHS Ester (Succinimidyl Ester)

Alexa Fluor™ 750 is a bright and photostable near-IR dye that is spectrally similar to Cy7.

Shipping Condition Room Temperature
Product Type Dye
Emission 782 nm
Excitation 753 nm
Product Line Alexa Fluor
10

Invitrogen™ Alexa Fluor™ 594 NHS Ester (Succinimidyl Ester)

Alexa Fluor™ 594 is a bright red dye. Used for stable signal generation in imaging and flow cytometry, Alexa Fluor™ 594 dye is water soluble and pH-insensitive from pH 4 to pH 10.

Shipping Condition Room Temperature
Product Type Dye
Emission 617 nm
Excitation 590 nm
Product Line Alexa Fluor
11

Thermo Scientific™ Pierce™ Premium Grade Sulfo NHS-SS-Biotin

Biotin-label antibodies or other proteins and biomolecules in applications where product integrity and risk minimization are paramount with Thermo Scientific™ Pierce™ Premium Grade Sulfo-NHS-SS-Biotin, a high-quality formulation of this amine-reactive, cleavable biotinylation reagent.

Cell Permeability Cell-Impermeant
Product Type Sulfo NHS-SS-Biotin
Spacer Mid-length, Cleavable
Label or Dye Biotin
Solubility DMF (Dimethylformamide),DMSO (Dimethylsulfoxide),Water
Reactive Moiety Active Ester, Succinimidyl Ester, Sulfo-NHS Ester
Label Type Biotin & Analogs
Chemical Reactivity Amine
Product Line Pierce
12

Invitrogen™ Click-IT™ GlcNAz Metabolic Glycoprotein Labeling Reagent (tetraacetylated N-Azidoacetylglucosamine)
GREENER_CHOICE

Compatible with LC-MS/MS and Multiplexed Proteomics™ technologies

13

Invitrogen™ Acryloyl-X, SE (6-((acryloyl)amino)hexanoic acid, succinimidyl ester)

Acryloyl-X, SE (6-((acryloyl)amino)hexanoic acid, succinimidyl ester) is an amine-reactive molecule that enables crosslinking of acrylamide to proteins and other biomolecules containing amines.

EDGE
14

Invitrogen™ Alexa Fluor™ 488 C5 Maleimide

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

EDGE
15

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.

EDGE