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Crosslinking Reagents

Reagents containing reactive end groups that respond to the presence of specific functional groups by forming bonds between polymer chains. Ideal for various applications including conjugation reactions, biomolecule labeling, and molecular purification.
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1

Thermo Scientific™ Sulfo-NHS (N-hydroxysulfosuccinimide), No-Weigh™ Format

Prepare amine-reactive sulfo-NHS-ester crosslinkers or enhance carbodiimide (EDC) conjugation for peptides or proteins using N-hydroxysulfosuccinimide, CAS 106627-54-7.

Molecular Weight (g/mol) 217.13
Solubility Water
PEGylated No
2

MilliporeSigma™ Calbiochem™ SATA

Reacts with primary amines to add protected sulfhydryl groups.

3

Thermo Scientific™ BM(PEG)2 (1,8-bismaleimido-diethyleneglycol)

Crosslink sulfhydryls to sulfhydryls (cysteine residues) with this long, pegylated, water-soluble crosslinker composed of maleimide groups and 2-unit (14.7A) PEG spacer arm.

4

Thermo Scientific™ DTSSP (3,3'-dithiobis(sulfosuccinimidyl propionate))

Crosslink amines to amines with Sulfo-DSP; composed of sulfo-NHS-ester groups and disulfide spacer arm (12.0A) that is cleavable with reducing agents.

5

Thermo Scientific™ GMBS (N-γ-maleimidobutyryl-oxysuccinimide ester)

Crosslink amines to sulfhydryls with this short crosslinker composed of NHS-ester and maleimide groups at ends of an aliphatic, 6-atom (7.3A) spacer arm.

6

Thermo Scientific™ SMPH (Succinimidyl 6-((beta-maleimidopropionamido)hexanoate))

Crosslink amines to sulfhydryls with this long crosslinker composed of NHS-ester and maleimide groups at ends of an aliphatic, 12-atom (14.2A) spacer arm.

7

Thermo Scientific™ Pierce™ Premium Grade Sulfo-SMCC (sulfosuccinimidyl 4-(N-maleimidomethyl)cyclohexane-1-carboxylate)

Optimize applications where product integrity and risk minimization are paramount our highest quality formulation of this popular amine-to-sulfhydryl crosslinker.

Shipping Condition Ambient
Content And Storage Upon receipt store desiccated at -20°C.
Cleavable No
Water Soluble Yes
Form Powder
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
Product Line Pierce
PEGylated No
8

Thermo Scientific™ BM(PEG)3 (1,11-bismaleimido-triethyleneglycol)

Crosslink sulfhydryls to sulfhydryls (cysteine residues) with this long, pegylated, water-soluble crosslinker composed of maleimide groups and 3-unit (17.8A) PEG spacer arm.

9

Thermo Scientific™ NHS-Phosphine

Derivatize proteins or amine surfaces for selective conjugation, detection or purification of azide-tagged targets with these activated phosphine compounds.

10

Thermo Scientific™ Sulfo-SIAB (sulfosuccinimidyl (4-iodoacetyl)aminobenzoate)

Crosslink amines to sulfhydryls with this mid-length, water-soluble crosslinker composed of sulfo-NHS-ester and iodoacetyl (haloacetyl) groups at ends of a 9-atom spacer arm.

11

Thermo Scientific™ Mass Spectrometry Compatible Crosslinkers

Improve mass spectrometry detection of crosslinked proteins and interactions with DSPP and TBDSPP heterotrifunctional crosslinkers.

Content And Storage Upon receipt store at -20°C protected from moisture.
Format Standard
Cleavable No
Product Type Crosslinker
Form Solid
Reactive Moiety NHS Ester
Spacer Arm Length 4.3 Å
Quantity 50 mg
Labeling Method Chemical Labeling
Crosslinker Type Homotrifunctional
Chemical Reactivity Amine-Amine
Product Line MS Reagents
PEGylated No
12

Thermo Scientific™ Pierce™ Premium Grade Sulfo-NHS (N-hydroxysulfosuccinimide)

Optimize applications where product integrity and risk minimization are paramount with our highest quality formulation of this N-hydroxysuccinimide modification reagent.

Shipping Condition Ambient
Content And Storage Upon receipt store at 4°C.
Cleavable No
Water Soluble Yes
Form Powder
Molecular Weight (g/mol) 217.13
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
Product Line Pierce
PEGylated No
13

Thermo Scientific™ PMPI (p-maleimidophenyl isocyanate)

Short (8.7A) hydroxyl-to-sulfhydryl crosslinker; isocyanate and maleimide groups; label -OH by urethane bonds for conjugation to cysteines by thioether bonds.

14

Thermo Scientific™ SM(PEG)12 (PEGylated, long-chain SMCC crosslinker)

Crosslink amines to sulfhydryls with these crosslinkers containing NHS-ester and maleimide groups at ends of water-soluble polyethylene glycol spacer arms (17.6 to 95.2A).

Shipping Condition Ambient
Content And Storage Upon receipt store desiccated at -20°C.
Cleavable No
Water Soluble Yes
Form Liquid
Molecular Weight (g/mol) 865.92
Solubility Water
Labeling Method Chemical Labeling
Crosslinker Type Heterobifunctional
Chemical Reactivity Amine-Sulfhydryl
Cell Permeability No
Format Standard, Single-use
Product Type Crosslinker
Spacer Long (>30 Å)
Reactive Moiety Maleimide, NHS Ester
Spacer Arm Length 53.4 Å
Product Line Pierce
PEGylated Yes
15

Thermo Scientific™ SM(PEG)2 (PEGylated SMCC crosslinker)

Crosslink amines to sulfhydryls with these crosslinkers containing NHS-ester and maleimide groups at ends of water-soluble polyethylene glycol spacer arms (17.6 to 95.2A).

Shipping Condition Ambient
Content And Storage Upon receipt store desiccated at -20°C.
Cleavable No
Water Soluble Yes
Form Solid
Molecular Weight (g/mol) 425.39
Solubility Water
Labeling Method Chemical Labeling
Crosslinker Type Heterobifunctional
Chemical Reactivity Amine-Sulfhydryl
Cell Permeability No
Format Standard, Single-use
Product Type Crosslinker
Spacer Medium (10 to 30 Å)
Reactive Moiety Maleimide, NHS Ester
Spacer Arm Length 17.6 Å
Product Line Pierce
PEGylated Yes