accessibility menu, dialog, popup

UserName

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.
Product Line 
  • (86)
  • (17)
  • (1)
  • (2)
  • (38)
  • (9)
  • (7)
  • (4)
  • (14)
  • (19)
  • (8)
  • (2)
  • (1)
  • (10)
  • (5)
  • (9)
  • (1)
  • (2)
  • (6)
  • (5)
  • (6)
  • (10)
Label Type 
  • (76)
  • (17)
  • (7)
  • (61)
  • (2)
  • (2)
  • (38)
  • (4)
  • (1)
  • (3)
  • (9)
  • (5)
  • (5)
Color 
  • (17)
  • (2)
  • (3)
  • (6)
  • (19)
  • (2)
  • (1)
  • (7)
  • (3)
  • (21)
  • (1)
  • (1)
Label or Dye 
  • (5)
  • (5)
  • (5)
  • (5)
  • (1)
  • (6)
  • (45)
  • (2)
  • (2)
  • (3)
  • (5)
  • (5)
Solubility 
  • (38)
  • (41)
  • (33)

Filtered Search Results

Products from some of our suppliers do not display in filtered search results. Please clear all filters to see these products.

Narrow Results

Narrow Results

category

special offers

  • (1)

brands

  • (3)
  • (1)
  • (49)
  • (240)
  • (9)
  • (3)
  • (2)
  • (118)
  • (1)
  • (1)

special interests

  • (15)

Product Line

  • (86)
  • (17)
  • (1)
  • (2)
  • (38)
  • (9)
  • (7)
  • (4)
  • (14)
  • (19)
  • (8)
  • (2)
  • (1)
  • (10)
  • (5)
  • (9)
  • (1)
  • (2)
  • (6)
  • (5)
  • (6)
  • (10)

Label Type

  • (76)
  • (17)
  • (7)
  • (61)
  • (2)
  • (2)
  • (38)
  • (4)
  • (1)
  • (3)
  • (9)
  • (5)
  • (5)

Color

  • (17)
  • (2)
  • (3)
  • (6)
  • (19)
  • (2)
  • (1)
  • (7)
  • (3)
  • (21)
  • (1)
  • (1)

Label or Dye

  • (5)
  • (5)
  • (5)
  • (5)
  • (1)
  • (6)
  • (45)
  • (2)
  • (2)
  • (3)
  • (5)
  • (5)

Solubility

  • (38)
  • (41)
  • (33)

Chemical Reactivity

  • (10)
  • (3)
  • (23)
  • (1)
  • (8)
  • (10)
  • (2)
  • (3)
  • (6)

Spacer

  • (1)
  • (1)
  • (9)
  • (1)
  • (3)
  • (1)
  • (4)
  • (6)
  • (3)
  • (3)
  • (1)
  • (1)
  • (1)
  • (8)

Labeling Target

  • (1)
  • (11)

Molecular Weight (g/mol)

  • (1)

Search Within Results
Keyword Search:
1 – 15 of 296 results
1

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
2

Invitrogen™ Dabcyl, SE, 4-((4-(dimethylamino)phenyl)azo)benzoic Acid, Succinimidyl Ester  DFS Item

4-((4-(dimethylamino)phenyl)azo)benzoic acid, succinimidyl ester (dabcyl, SE)

3

Invitrogen™ Alexa Fluor™ 750 NHS Ester (Succinimidyl Ester)  DFS Item

Alexa Fluor™ 750 is a bright and photostable near-IR dye that is spectrally similar to Cy7.

Shipping Condition Room Temperature
Product Type Dye
Emission 782 nm
Excitation 753 nm
Product Line Alexa Fluor
4

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

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
5

Thermo Scientific™ EZ-Link™ Amine-PEG4-Desthiobiotin, No-Weigh™ Format

Thermo Scientific™ EZ-Link™ Amine-PEG4-Desthiobiotin No-Weigh™ Format is a pegylated amine compound whose biotin-like group is elutable from streptavidin, making it ideal for carbodiimide (EDC) conjugation to carboxylates for labeling and purification.

6

Invitrogen™ Alexa Fluor™ 350 NHS Ester (Succinimidyl Ester)  DFS Item

Used for stable signal generation in imaging and flow cytometry, Alexa Fluor™ 350 dye is water soluble and pH-insensitive from pH 4 to pH 10.

7

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

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

8

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.

10

Invitrogen™ BODIPY™ FL NHS Ester (Succinimidyl Ester)  DFS Item

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

11

Invitrogen™ Tetramethylrhodamine-5-Iodoacetamide Dihydroiodide (5-TMRIA), single isomer  DFS Item

Tetramethylrhodamine-5-Iodoacetamide Dihydroiodide (5-TMRIA), single isomer

12

Invitrogen™ CMNB-Caged Carboxyfluorescein, SE (5-Carboxyfluorescein-Bis-(5-Carboxymethoxy-2-Nitrobenzyl) Ether, β-Alanine-Carboxamide, Succinimidyl Ester)  DFS Item

CMNB-Caged Carboxyfluorescein, SE (5-Carboxyfluorescein-Bis-(5-Carboxymethoxy-2-Nitrobenzyl) Ether, β-Alanine-Carboxamide, Succinimidyl Ester)

14

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
15

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

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