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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 298 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

Bolton-Hunter Reagent, Thermo Scientific Chemicals

CAS: 34071-95-9 Molecular Formula: C13H13NO5 Synonym: N-Succinimidyl-3-(4-hydroxyphenyl)propionate; Rudinger reagent

CAS 34071-95-9
Synonym N-Succinimidyl-3-(4-hydroxyphenyl)propionate; Rudinger reagent
Molecular Formula C13H13NO5
5

Thermo Scientific™ DyLight™ 488, Free Acid

Use these non-activated, carboxylic acid forms of DyLight Dyes as controls and calibration standards in fluorescence imaging applications.

9

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

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™
10

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.

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™
11

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
12

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™
13

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

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
14

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™
15

Invitrogen™ Alexa Fluor™ 633 C5 Maleimide

Alexa Fluor™ 633 is a bright, red fluorescent dye with excitation ideally suited to the 633 nm laser line.