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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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31 – 45 of 2,876 results
31

Thermo Scientific™ EZ-Link™ Hydrazide-PEG4-Biotin

Biotinylate glycoproteins (aldehydes of oxidized sugars) with this mid-length (31.3A), pegylated biotinylation reagent containing a 4-unit PEG spacer for solubility.

EDGE
32

Invitrogen™ Alexa Fluor™ 405 Cadaverine

Alexa Fluor™ 405 Cadaverine is useful as a polar tracer and as a reactive dye for labeling proteins via a carboxylic acid moiety.

EDGE ENCOMPASS_PREFERRED
33

Thermo Scientific™ EZ-Link™ Iodoacetyl-PEG2-Biotin

Biotinylate reduced cysteines (-SH groups) at high pH with this haloacetyl-activated, sulfhydryl-reactive biotinylation reagent containing polyethylene glycol for solubility.

EDGE
34

Invitrogen™ Click-iT™ sDIBO Alkynes for copper-free click chemistry
GREENER_CHOICE

Experience copper-free 'click chemistry' with Click-IT™ Alexa Fluor™, and sDIBO Alkyne reagents, which are ideal for surface labeling of live cells and minimize damage to enzymes and fluorescent proteins.

EDGE ENCOMPASS_PREFERRED
Shipping Condition Dry Ice
Labeling Target Azide
Labeling Method Click Chemistry
Green Features Less hazardous
35

Invitrogen™ Monobromobimane (mBBr), FluoroPure™ grade

Because it is manufactured at our ISO 13485—certified facilities in Eugene, Oregon, we can guarantee that FluoroPure grade monobromobimane is greater than or equal to 98% pure by HPLC.

EDGE ENCOMPASS_PREFERRED
36

Invitrogen™ Monochlorobimane (mBCI)

monochlorobimane (mBCI)

EDGE ENCOMPASS_PREFERRED
37

Thermo Scientific™ FITC (5/6-fluorescein isothiocyanate), 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 FITC
Label or Dye FITC (Fluorescein)
Reactive Moiety Isothiocyanate
Solubility DMF (Dimethylformamide)
Emission 518
Excitation 494
Label Type Classic Dyes
Chemical Reactivity Amine
Product Line Pierce
38

Invitrogen™ BODIPY™ FL-X NHS Ester (Succinimidyl Ester)

BODIPY™ FL-X dye is bright, green fluorescent dye with similar excitation and emission to fluorescein (FITC) or Alexa Fluor™ 488 dye.

EDGE ENCOMPASS_PREFERRED
39

Invitrogen™ Alexa Fluor™ 647 C2 Maleimide

Alexa Fluor™ 647 is a bright, far-red fluorescent dye with excitation ideally suited for the 594 nm or 633 nm laser lines.

EDGE ENCOMPASS_PREFERRED
40

Thermo Scientific™ DyLight™ 800 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
Content And Storage Store desiccated at -20°C.
Label or Dye DyLight™ 800
Reactive Moiety Active Ester, Succinimidyl Ester, NHS Ester
Solubility DMF (Dimethylformamide)
Emission 794
Excitation 777
Label Type DyLight Fluors
Chemical Reactivity Amine
Product Line DyLight
41

Thermo Scientific™ DyLight™ 755 Maleimide

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

EDGE
42

Molecular Probes™ pHrodo™ Green STP Ester

pHrodo™ Green STP Ester

EDGE ENCOMPASS_PREFERRED
43

Invitrogen™ Fluorescein-5-Isothiocyanate (FITC 'Isomer I')

Fluorescein-5-Isothiocyanate (FITC 'Isomer I')

EDGE ENCOMPASS_PREFERRED
Shipping Condition Room Temperature
Content And Storage Store in freezer (-5 to -30°C) and protect from light.
Product Type Fluorescein-5-Isothiocyanate
Label or Dye FITC (Fluorescein)
Reactive Moiety Isothiocyanate
Label Type Classic Dyes
Chemical Reactivity Amine
44

Invitrogen™ 5-DTAF (5-(4,6-Dichlorotriazinyl) Aminofluorescein), single isomer

EDGE ENCOMPASS_PREFERRED
45

Molecular Probes™ Alexa Fluor™ 488 Azide (Alexa Fluor™ 488 5-Carboxamido-(6-Azidohexanyl), Bis(Triethylammonium Salt)), 5-isomer

The green-fluorescent Alexa Fluor™ 488 azide is reactive with terminal alkynes via a copper-catalyzed click reaction.

EDGE ENCOMPASS_PREFERRED