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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 296 results
2

Invitrogen™ Alexa Fluor™ 594 Cadaverine  DFS Item

Alexa Fluor™ 594 Cadaverine is useful as a polar tracer and as a reactive dye for labeling proteins via a carboxylic acid moiety.

3

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

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
5

Bolton-Hunter Reagent, Thermo Scientific Chemicals

CAS: 34071-95-9 Molecular Formula: C13H13NO5,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,C13H13NO5
6

Thermo Scientific™ FL - EAB1 Peptide, 100μM  DFS Item

Contain known interaction motifs and are labeled with fluorescein

7

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
10

Invitrogen™ Alexa Fluor™ 546 C5 Maleimide  DFS Item

Alexa Fluor™ 546 is a bright, orange fluorescent dye that can be excited using the 488 nm or 532 nm laser lines.

11

Molecular Probes™ Alexa Fluor™ 610-X NHS Ester (Succinimidyl Ester)  DFS Item

Used for stable signal generation in imaging and flow cytometry, Alexa Fluor™ 610-X dye is water soluble and pH-insensitive from pH 4 to pH 10.

12

Invitrogen™ Alexa Fluor™ 647 Hydroxylamine  DFS Item

Alexa Fluor™ 647 Hydroxlamine is useful as a cell tracer and as a reactive dye for labeling aldehydes or ketones in polysaccharides or glycoproteins.

13

Invitrogen™ 4-Acetamido-4'-Maleimidylstilbene-2,2'-Disulfonic Acid, Disodium Salt  DFS Item

4-acetamido-4'-maleimidylstilbene-2,2'-disulfonic acid, disodium salt

14

Invitrogen™ BODIPY™ 650/665-X NHS Ester (Succinimidyl Ester)  DFS Item

BODIPY™ 650/665-X dye is bright, far-red fluorescent dye with similar excitation and emission to Cy5 or Alexa Fluor™ 647.