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The tetrazine ligation is the reaction of a trans-cyclooctene and an s-tetrazine in an inverse electron demand Diels Alder (IEDDA) reaction followed by a retro-Diels Alder reaction to eliminate nitrogen gas. This is a fast reaction with a second order rate constant of 2000 M−1-s−1 (in 9:1 methanol/water) allowing modification of biomolecules at very low concentrations. This ligation can be performed in aqueous media with very fast speed. Reactions have also been performed using TCO or norbornenes as dienophiles at second order rates on the order of 1 M−1–s−1 in aqueous media. The reaction has been applied in labeling live cells and other bio-entities.

Tetrazine-PEG
  • Tetrazine-PEG-Acid
  • Tetrazine-PEG-Alcohol
  • Tetrazine-PEG-Alkyne
  • Tetrazine-PEG-Amine
  • Tetrazine-PEG-Azide
  • Tetrazine-PEG-Biotin
  • Tetrazine-PEG-DBCO
  • Tetrazine-PEG-Maleimide
  • Tetrazine-PEG-NH-Boc
  • Tetrazine-PEG-NHS ester
  • Tetrazine-PEG-peptide
  • Tetrazine-PEG-PFP ester
  • Tetrazine-PEG-t-butyl ester
  • Tetrazine-PEG-triethoxysilane
Catalog# Name Structure M.W. Purity Pricing
Tetrazine-PEG-Acid
AP10690Tetrazine-Acid216.2≥95% Pricing
AP10688Methyltetrazine-acid230.2≥95% Pricing
AP11838Methyltetrazine-PEG4-acid436.47≥95% Pricing
AP11839Methyltetrazine-PEG8-acid612.68≥95% Pricing
AP11840Methyltetrazine-PEG12-acid788.89≥95% Pricing
AP11841Methyltetrazine-PEG24-acid1317.53≥95% Pricing
Tetrazine-PEG-Alcohol
AP106934-(6-methyl-1,2,4,5-tetrazin-3-yl)phenol188.2≥95% Pricing
Tetrazine-PEG-Alkyne
AP10718Methyltetrazine-PEG5-Alkyne402.45≥95% Pricing
AP11848Methyltetrazine-amido-PEG5-alkyne487.56≥95% Pricing
Tetrazine-PEG-Amine
AP10689Methyltetrazine-amine HCl salt237.69≥95% Pricing
AP11836Methyltetrazine-propylamine HCl salt245.29≥95% Pricing
AP10719Methyltetrazine-PEG4-amine363.42≥95% Pricing
AP11837Methyltetrazine-PEG24-amine HCl salt1244.48≥95% Pricing
Tetrazine-PEG-Azide
AP10717Methyltetrazine-Peg4-Azide389.42≥95% Pricing
AP11849Methyltetrazine-amido-PEG7-azide606.68≥95% Pricing
Tetrazine-PEG-Biotin
AP11078Biotin-PEG4-methyltetrazine589.71≥95% Pricing
Tetrazine-PEG-DBCO
AP11146Methyltetrazine-DBCO683.74≥95% Pricing
AP11145Methyltetrazine-PEG12-DBCO1003.16≥95% Pricing
Tetrazine-PEG-Maleimide
AP10734Methyltetrazine-PEG3-Maleimide470.48≥95% Pricing
AP10721Methyltetrazine-PEG4-Maleimide514.54≥95% Pricing
Tetrazine-PEG-NH-Boc
AP11850Methyltetrazine-PEG4-NH-Boc463.54≥95% Pricing
AP11851Methyltetrazine-PEG24-NH-Boc1344.6≥95% Pricing
Tetrazine-PEG-NHS ester
AP10691Tetrazine-NHS ester313.3≥95% Pricing
AP10692Methyltetrazine-NHS ester327.3≥95% Pricing
AP11842Methyltetrazine-Sulfo-NHS ester429.34≥95% Pricing