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Crosslinking, Labeling and Protein Modification

A variety of reagents used to modify proteins for identification, analysis, research, and other applications.
Protein Labeling Reagents (1,025)
Protein and Antibody Labeling Kits (260)
Protein Modification Reagents (251)
Crosslinking Reagents (134)
Tandem Mass Tag Reagents (45)

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1 – 15 of 1,016 results
1
Promotions Available

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.

2
Promotions Available

Thermo Scientific™ Pierce™ EDC, No-Weigh™ Format

Immobilize or conjugate proteins using 1-Ethyl-3-(3-dimethylaminopropyl) carbodiimide (CAS 25952-53-8), a water-soluble, carboxyl-to-amine crosslinker.

EDGE
Shipping Condition Wet Ice
Content And Storage Upon receipt store desiccated at -20°C.
Description EDC
Cleavable No
Water Soluble Yes
Form Powder
Molecular Weight (g/mol) 191.7
Solubility Water
Labeling Method Chemical Labeling
Crosslinker Type Heterobifunctional
Chemical Reactivity Amine-Carboxyl
Cell Permeability No
Format Standard, Single-use, Premium-grade
Product Type Crosslinker
Spacer Short (<10 Å)
Reactive Moiety Carbodiimide
Spacer Arm Length 0.0 Å
PEGylated No
3
Promotions Available

Thermo Scientific™ Sulfo-SMCC (sulfosuccinimidyl 4-(N-maleimidomethyl)cyclohexane-1-carboxylate), No-Weigh™ Format

Crosslink amines to sulfhydryls with this mid-length, water-soluble crosslinker made of NHS-ester and maleimide groups at ends of a cyclohexane-containing, 8-atom spacer arm.

EDGE
Shipping Condition Ambient
Content And Storage Upon receipt store desiccated at -20°C.
Description Sulfo-SMCC
Cleavable No
Water Soluble Yes
Molecular Weight (g/mol) 436.37
Solubility Water
Labeling Method Chemical Labeling
Crosslinker Type Heterobifunctional
Chemical Reactivity Amine-Sulfhydryl
Cell Permeability No
Format Standard, Single-use, Premium-grade
Product Type Crosslinker
Spacer Short (<10 Å)
Reactive Moiety Maleimide, Sulfo-NHS Ester
Spacer Arm Length 8.3 Å
PEGylated No
4
Promotions Available

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

Thermo Scientific™ EZ-Link™ NHS-PEG4-Biotin is a pegylated, water-soluble reagent for simple and efficient biotin labeling of antibodies, proteins and other primary amine-containing macromolecules.

EDGE
Cell Permeability Cell-Impermeant
Content And Storage Store at -20°C.
Product Type NHS-PEG4-Biotin
Label or Dye Biotin
Solubility DMF (Dimethylformamide),DMSO (Dimethylsulfoxide),Water
Chemical Reactivity Amine
Product Line EZ-Link™
5
Promotions Available

Thermo Scientific™ Pierce™ Sulfo-SANPAH, No-Weigh™ Format

EDGE
Shipping Condition Ambient
Content And Storage Upon receipt store at -20°C protected from light and moisture.
Cleavable By Thiols
Water Soluble Yes
Form Powder
Molecular Weight (g/mol) 492.4
Solubility Water
Labeling Method Chemical Labeling
Crosslinker Type Heterobifunctional
Chemical Reactivity Amine-Nonselective
Cell Permeability No
Format Standard, Single-use
Product Type Crosslinker
Spacer Medium (10 to 30 Å)
Spacer Arm Length 18.2 Å
PEGylated No
6

Thermo Scientific™ Pierce™ Premium Grade EDC (1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride)

Optimize applications where product integrity and risk minimization are paramount with this high-quality formulation of carbodiimide crosslinker.

EDGE
Content And Storage Upon receipt store desiccated at -20°C.
Cleavable No
Water Soluble Yes
Molecular Weight (g/mol) 191.7
Solubility Water
Labeling Method Chemical Labeling
Crosslinker Type Heterobifunctional
Chemical Reactivity Amine-Carboxyl
Cell Permeability No
Format Standard, Single-use, Premium-grade
Product Type Crosslinker
Spacer Short (<10 Å)
Reactive Moiety Carbodiimide
Spacer Arm Length 0.0 Å
Product Line Pierce™
PEGylated No
7
Promotions Available

Thermo Scientific™ Pierce™ Biotin Quantitation Kit

HABA dye reagent and biotinylated protein standard for convenient colorimetric determination of biotinylation levels in antibodies and other proteins.

EDGE
8
Promotions Available

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.

EDGE
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™
9
Promotions Available

Thermo Scientific™ Immobilized Trypsin, TPCK Treated (Agarose Resin)

Cleave the carboxyl-side of Arg and Lys residues with trypsin that isTPCK-treated to block chymotrypsin activity; its immobilized form allows enzyme removal after digestion.

EDGE
10
Promotions Available

Thermo Scientific™ Pierce™ DSG, No-Weigh™ Format

EDGE
Cleavable No
Water Soluble No
Form Powder
Molecular Weight (g/mol) 326.26
Solubility DMF, DMSO
Labeling Method Chemical Labeling
Crosslinker Type Homobifunctional
Chemical Reactivity Amine-Amine
Cell Permeability Yes
Format Standard, Single-use
Product Type Crosslinker
Spacer Short (<10 Å)
Reactive Moiety NHS Ester
Spacer Arm Length 7.7 Å
PEGylated No
11
Promotions Available

Thermo Scientific™ BS(PEG)9

Crosslink amines to amines with these long (21.7A and 35.8A) crosslinkers composed of NHS-ester groups and 5-unit or 9-unit PEG spacer arms that enhance protein solubility.

EDGE
12

Invitrogen™ Click-iT™ Protein Reaction Buffer Kit
GREENER_CHOICE

Click two moieties together: azide or alkyne and the corresponding click detection reagent

EDGE
13

Invitrogen™ Alexa Fluor™ 488 C5 Maleimide

Alexa Fluor™ 488 is a bright, green fluorescent dye with excitation ideally suited to the 488 nm laser line.

EDGE
14

Molecular Probes™ Alexa Fluor™ 488 Hydrazide

Alexa Fluor™ 488 Hydrazide is useful as a cell tracer and as a reactive dye for labeling aldehydes or ketones in polysaccharides or glycoproteins.

EDGE
15
Promotions Available

Thermo Scientific™ EZ-Link™ Sulfo NHS-LC-LC-Biotin, No-Weigh™ Format

EDGE
Label Type Biotin & Analogs