Methyltetrazine-PEG5-alkyne

For research use only. Not for therapeutic Use.

  • CAT Number: I016542
  • CAS Number: 1802907-97-6
  • Molecular Formula: C₂₀H₂₆N₄O₅
  • Molecular Weight: 402.44
  • Purity: ≥95%
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Methyltetrazine-PEG5-alkyne (Cat No.: I016542) is a multifunctional, bioorthogonal crosslinker used in chemical biology and bioconjugation applications. It features a methyltetrazine group for rapid, selective inverse electron demand Diels–Alder (IEDDA) reactions with trans-cyclooctene (TCO) and an alkyne group for copper-catalyzed azide-alkyne cycloaddition (CuAAC) “click” chemistry. The PEG5 spacer enhances solubility and flexibility, reducing steric hindrance in complex biological systems. Methyltetrazine-PEG5-alkyne is widely used for dual-labeling, targeted drug delivery, and biomolecular imaging, enabling precise and efficient modification of proteins, antibodies, and other biomolecules.


CAS Number 1802907-97-6
Molecular Formula C₂₀H₂₆N₄O₅
Purity ≥95%
Target PROTAC Linkers
IUPAC Name 3-methyl-6-[4-[2-[2-[2-(2-prop-2-ynoxyethoxy)ethoxy]ethoxy]ethoxy]phenyl]-1,2,4,5-tetrazine
InChI 1S/C20H26N4O5/c1-3-8-25-9-10-26-11-12-27-13-14-28-15-16-29-19-6-4-18(5-7-19)20-23-21-17(2)22-24-20/h1,4-7H,8-16H2,2H3
InChIKey OAKPIEOTVXLRCN-UHFFFAOYSA-N
SMILES CC1=NN=C(N=N1)C2=CC=C(C=C2)OCCOCCOCCOCCOCC#C
Reference

[1]. An S, et al. Small-molecule PROTACs: An emerging and promising approach for the development of targeted therapy drugs. EBioMedicine. 2018 Oct;36:553-562

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