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Thiazoles

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Medchemexpress LLC Boc-bipiperidine-ethynylbenzoic acid | 2308497-81-4 | MFCD34578497 | 99.2% | 412.52 g/mol | C24H32N2O4 | 5 MG

Boc-bipiperidine-ethynylbenzoic acid is an alkyne-containing PROTAC linker and click-chemistry building block used for assembling bifunctional degraders and for copper-catalyzed azide-alkyne cycloaddition (CuAAC). Supplied as a purified small-molecule reagent, it is intended for synthetic chemistry and bioconjugation workflows.

  • Contains terminal alkyne for copper-catalyzed azide-alkyne cycloaddition.
  • High purity (≈99.2%) suitable for synthesis and analytical work.
  • Available in small research pack sizes for method development.
  • Stable as a solid when stored sealed, away from moisture and light.
  • Recommended storage in solvent: -80°C (6 months) or -20°C (1 month).
  • Useful as a PROTAC linker and bioconjugation building block.

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2

Medchemexpress LLC Boc-bipiperidine-ethynylbenzoic acid | 2308497-81-4 | 99.2% | C24H32N2O4 | 10MG

Boc-bipiperidine-ethynylbenzoic acid is a Boc-protected bipiperidine-containing ethynylbenzoic acid used as a PROTAC linker and click-chemistry building block for conjugation via alkyne chemistry. It is supplied as a high-purity solid for research use.

  • High purity (≈99.2%) suitable for research applications.
  • Boc-protected bipiperidine scaffold enabling linker synthesis.
  • Ethynyl handle for copper-catalyzed azide-alkyne cycloaddition.
  • Solid, white to off-white appearance for easy handling.
  • Available in small milligram pack sizes for synthesis and screening.
  • Store sealed, away from moisture and light; cold storage recommended.

ENCOMPASS_PREFERRED
3

Medchemexpress LLC DOTA-(t-butyl)3-PEG5-azide | 00-00-0 | 99.7% | C40H76N8O12 | 10MG

DOTA-(t-butyl)3-PEG5-azide is a PEG-based bifunctional chelator linker featuring three tert-butyl-protected DOTA ester groups and a PEG5 spacer terminating in an azide. Supplied as a high-purity research material (99.69%, MW 861.08, formula C40H76N8O12), it is designed for use in bioconjugation, PROTAC linker assembly, and preparation of chelator-conjugated probes.

  • Tri(tert-butyl) DOTA protected as tert-butyl esters for synthetic stability.
  • PEG5 spacer provides flexibility and improves solubility.
  • Azide terminal enables copper-catalyzed and strain-promoted click reactions.
  • High purity suitable for research-grade bioconjugation workflows.
  • Applicable for preparing chelator-conjugated probes and radiolabeling precursors.

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