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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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3

Invitrogen™ Alexa Fluor™ 594 Hydrazide, for microinjection  DFS Item

Alexa Fluor™ 594 Hydrazide is useful as a cell tracer and as a reactive dye for labeling aldehydes or ketones in polysaccharides or glycoproteins.

4

Invitrogen™ Alexa Fluor™ 488 C5 Maleimide  DFS Item

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

5

Invitrogen™ Alexa Fluor™ Plus Amine-Reactive Dyes
GREENER_CHOICE

Discover Alexa Fluor Plus amine-reactive dyes, the next-generation fluorescent labeling solution. Engineered to minimize nonspecific staining and enhance signal-to-noise ratios, these dyes ensure precise detection of low-abundance targets. Achieve bright, reliable imaging with reduced background interference.

Labeling Target Primary amines
Content And Storage -25°C to 8°C
Format Amine-reactive dye
Product Type Amine-reactive Dye
Formulation Solid
Solubility DMSO
Label Type Alexa Fluor
Product Line Alexa Fluor
Detection Method Fluorescence
6

Invitrogen™ SiteClick™ sDIBO Alkyne Kits for Antibody Labeling  DFS Item

Easily attach Alexa Fluor™ pHrodo™ and Biotin sDIBO Alkyne tags to azido-modified antibodies using SiteClick™ chemistry.

Shipping Condition Wet Ice
Labeling Target Azido modified antibodies
Content And Storage Store in refrigerator (2°C to 8°C) and protect from light.
Labeling Method Click Chemistry
Chemical Reactivity Azide
8

Invitrogen™ TAMRA, SE; 5-(and-6)-Carboxytetramethylrhodamine, Succinimidyl Ester (5(6)-TAMRA, SE), mixed isomers  DFS Item

TAMRA, SE; 5-(and-6)-Carboxytetramethylrhodamine, Succinimidyl Ester (5(6)-TAMRA, SE), mixed isomers

9

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.

10

Invitrogen™ Dansyl Ethylenediamine, 5-Dimethylaminonaphthalene-1-(N-(2-Aminoethyl))sulfonamide  DFS Item

5-dimethylaminonaphthalene-1-(N-(2-aminoethyl))sulfonamide (dansyl ethylenediamine)

11

Thermo Scientific™ DyLight™ 650 Maleimide

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

12

Thermo Scientific™ DyLight™ 594 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.
Product Type Dye
Label or Dye DyLight™ 594
Reactive Moiety Active Ester, Succinimidyl Ester, NHS Ester
Solubility DMF (Dimethylformamide)
Emission 618
Excitation 593
Label Type DyLight Fluors
Chemical Reactivity Amine
Product Line DyLight
13

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

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
15

Thermo Scientific™ DyLight™ 633 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.
Product Type Dye
Label or Dye DyLight™ 633
Reactive Moiety Active Ester, Succinimidyl Ester, NHS Ester
Solubility DMF (Dimethylformamide)
Emission 658
Excitation 638
Label Type DyLight Fluors
Chemical Reactivity Amine
Product Line DyLight