Crosslinking reagents in Applications

Bifunctional crosslinkers are molecules that contain two functional groups, either identical, or different, for the synthesis of conjugates of biomolecules.

Lumiprobe offers a range of bifunctional crosslinker molecules that contain various terminal reactive groups flanking different linkers, including short alkyls, and longer polyethylene glycols (PEGs).

3-Azidopropanol

Azidopropanol is a short bifunctional linker compound with azide and hydroxy functional groups.
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Cat. # Quantity Price Lead time
1419-1g 1 g $290.00 in stock
1419-5g 5 g $450.00 in stock

3-Azidopropylamine

Bifunctional short crosslinker with an aminogroup and azide group.
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Cat. # Quantity Price Lead time
58-1g 1 g $145.00 in stock
58-5g 5 g $490.00 in stock

Alkyne hydrazide

Bifunctional reagent containing alkyne group and hydrazide function. It reacts with aldehydes and ketones. Alkyne group can then be coupled with various azides via CuAAC reaction.
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Cat. # Quantity Price Lead time
41770 25 mg $95.00 in stock
51770 50 mg $195.00 in stock
61770 100 mg $290.00 in stock

Alkyne maleimide

Maleimide reagent for the attachment of alkyne functional group to proteins, peptides, and other molecules bearing SH (thiol) groups, including cysteine residues.
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Cat. # Quantity Price Lead time
41780 25 mg $95.00 in stock
51780 50 mg $175.00 in stock
61780 100 mg $200.00 in stock

Alkyne-PEG2-amine

Diethyleneglycol (PEG2) based bifunctional linker containing amine and alkyne functional groups.
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Cat. # Quantity Price Lead time
2065-1g 1 g $120.00 in stock
2065-5g 5 g $350.00 in stock
2065-25g 25 g please inquire in stock

Alkyne-PEG2-carboxylic acid

Bifunctional diethyleneglycol linker with terminal alkyne and carboxylic acid moieties.
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Cat. # Quantity Price Lead time
2155-1g 1 g $380.00 7 days

Alkyne-PEG2-iodide

Bifunctional reactive crosslinker containing terminal alkyne group for click chemistry or Sonogashira coupling, and reactive alkyl iodide group.
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Cat. # Quantity Price Lead time
2136-1g 1 g $450.00 in stock

Alkyne-PEG2-NHS ester

Bifunctional hydrophilic linker with NHS ester and terminal alkyne functional group based on diethyleneglycol (PEG2).
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Cat. # Quantity Price Lead time
2219-1g 1 g $490.00 in stock
2219-5g 5 g $980.00 21 days

Alkyne-PEG3-amine

Alkyne-PEG3-amine is a medium-length heterobifunctional linker for conjugation.
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Cat. # Quantity Price Lead time
425-1g 1 g $195.00 in stock
425-5g 5 g $580.00 in stock

Alkyne-PEG3-carboxylic acid

Bifunctional triethyleneglycol linker with terminal alkyne and carboxylic acid moieties.
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Cat. # Quantity Price Lead time
1743-1g 1 g $490.00 in stock
1743-5g 5 g $980.00 in stock
1743-25g 25 g please inquire in stock

Alkyne-PEG3-maleimide

Bifunctional spacer with alkyne and maleimide groups.
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Cat. # Quantity Price Lead time
2344-100mg 100 mg $140.00 in stock
2344-1g 1 g $530.00 in stock

Alkyne-PEG3-NHS ester

Bifunctional hydrophilic linker with NHS ester and terminal alkyne functional group based on triethyleneglycol (PEG3).
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Cat. # Quantity Price Lead time
2298-1g 1 g $490.00 in stock
2298-5g 5 g $980.00 21 days
2298-25g 25 g please inquire 21 days

Alkyne-PEG3-OH

Alkyne-PEG3-OH is a triethyleneglycol based bifunctional linker with a hydroxyl group and an alkyne fragment.
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Cat. # Quantity Price Lead time
418-1g 1 g $95.00 in stock
418-5g 5 g $280.00 in stock
418-25g 25 g please inquire in stock

Alkyne-PEG4-amine

A bifunctional linker molecule containing both terminal alkyne moiety for click chemistry, and amine group. Contains a long hydrophilic PEG4 arm.
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Cat. # Quantity Price Lead time
2025-100mg 100 mg $95.00 in stock
2025-1g 1 g $390.00 in stock

Alkyne-PEG4-carboxylic acid

Bifunctional tetraethyleneglycol linker with terminal alkyne and carboxylic acid moieties.
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Cat. # Quantity Price Lead time
2187-1g 1 g $380.00 12 days

Alkyne-PEG4-iodide

Bifunctional reactive PEG4-based crosslinker containing terminal alkyne group for click chemistry or Sonogashira coupling and reactive alkyl iodide group.
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Cat. # Quantity Price Lead time
2188-1g 1 g $450.00 12 days

Alkyne-PEG4-maleimide

Water soluble, heterobifunctional hydrophilic linker with a length of 14 Å, containing maleimide for thiol labeling, and alkyne for click chemistry. An ideal reagent to attach an alkyne moiety to a protein.
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Cat. # Quantity Price Lead time
2002-100mg 100 mg $150.00 in stock
2002-1g 1 g $590.00 in stock

Alkyne-PEG4-NHS ester

Bifunctional hydrophilic linker with NHS ester and terminal alkyne functional group based on tetraethyleneglycol (PEG4).
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Cat. # Quantity Price Lead time
2409-1g 1 g $790.00 21 days

Amine-PEG3-carboxylic acid

Hydrophilic linker with terminal amino group and carboxyl group.
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Cat. # Quantity Price Lead time
2616-250mg 250 mg $90.00 in stock
2616-1g 1 g $230.00 in stock
2616-2g 2 g $390.00 in stock
2616-5g 5 g $690.00 in stock

Amine-PEG3-OH

Bifunctional PEG3 derivative with amine group and hydroxyl.
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Cat. # Quantity Price Lead time
2774-1g 1 g $190.00 in stock
2774-5g 5 g $490.00 12 days
2774-25g 25 g please inquire in stock

Amine-PEG4-OH

A hydrophilic tetraethylene glycol derivative with terminal amino and hydroxyl groups.
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Cat. # Quantity Price Lead time
2473-1g 1 g $190.00 in stock
2473-5g 5 g $490.00 in stock
2473-25g 25 g please inquire in stock

Azide-PEG2-aldehyde

Bifunctional linker with azide group and aliphatic aldehyde moiety.
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Cat. # Quantity Price Lead time
2360-500mg 500 mg $190.00 21 days

Azide-PEG2-amine

A diethylene glycol (PEG2) linker with azide and amino groups.
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Cat. # Quantity Price Lead time
2581-1g 1 g $110.00 in stock
2581-5g 5 g $260.00 12 days
2581-10g 10 g $390.00 in stock

Azide-PEG3-amine

A bifunctional linker with azide and amine groups flanking PEG3 (triethylene glycol)
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Cat. # Quantity Price Lead time
218-1g 1 g $95.00 in stock
218-5g 5 g $280.00 5 days
218-25g 25 g please inquire in stock

Azide-PEG3-azide

Triethylene glycol diazide is a bifunctional crosslinker bearing two azide groups. Suitable for click chemistry.
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Cat. # Quantity Price Lead time
207-1g 1 g $95.00 in stock
207-5g 5 g $390.00 in stock
207-25g 25 g please inquire in stock

Azide-PEG3-carboxylic acid

Bifunctional triethylene glycol with terminal carboxyl and azido groups.
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Cat. # Quantity Price Lead time
2558-1g 1 g $265.00 in stock
2558-5g 5 g $950.00 in stock