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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 297 results
1

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.

4

Invitrogen™ Alexa Fluor™ 594 C5 Maleimide

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

5

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

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

6

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.

7

Invitrogen™ Alexa Fluor™ 568 Hydrazide

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

9

Invitrogen™ Tetramethylrhodamine Cadaverine, 5-(and-6)-((N-(5-Aminopentyl) Amino) Carbonyl) Tetramethylrhodamine, mixed isomers

Tetramethylrhodamine Cadaverine, 5-(and-6)-((N-(5-Aminopentyl) Amino) Carbonyl) Tetramethylrhodamine, mixed isomers

10

Invitrogen™ Alexa Fluor™ 532 NHS Ester (Succinimidyl Ester)

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

Product Type Alexa Fluor™ 532 NHS Ester (Succinimidyl Ester)
Label or Dye Alexa Fluor™ 532
11

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
13

Invitrogen™ Alexa Fluor™ 568 NHS Ester (Succinimidyl Ester)

Alexa Fluor™ 568 is a bright orange dye. Used for stable signal generation in imaging and flow cytometry, Alexa Fluor™ 568 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™ 568
Reactive Moiety Active Ester, Succinimidyl Ester
Emission 602 nm
Excitation 578 nm
Label Type Alexa Fluor
Chemical Reactivity Amine
Product Line Alexa Fluor
14

Invitrogen™ Alexa Fluor™ 568 C5 Maleimide

Alexa Fluor™ 568 is a bright, orange/red fluorescent dye with excitation ideally suited for the 568 nm laser line on the Ar-Kr mixed-gas laser.

15

Invitrogen™ Alexa Fluor™ 555 Hydrazide

Alexa Fluor™ 555 Hydrazide is useful as a cell tracer and as a reactive dye for labeling aldehydes or ketones in polysaccharides or glycoproteins.