Small molecules & peptides


Precursor for 1-[¹⁸F]Fluoro-4-pentyne

4-Pentyn-1-ol tosylate; 4-Pentynyl p-toluenesulfonate; 4-Pentynyl tosylate; 5-(p-Toluenesulfonyloxy)pent-1-yne; 5-(Tosyloxy)-1-pentyne; Pent-4-ynyl p-tosylate; Toluene-4-sulfonic acid pent-4-ynyl ester

CA index names: 4-Pentyn-1-ol, 1-(4-methylbenzenesulfonate); 4-Pentyn-1-ol, 4-methylbenzenesulfonate


Research Chemical


Molar mass 238.30

CAS RN [77758-50-0]

Purity ≥ 95 %

  • Colorless to yellowish oil or solid


CoA: appearance, ¹H NMR spectrum


Marik J. et al. Click for PET: rapid preparation of [¹⁸F]fluoropeptides using CuI catalyzed 1,3-dipolar cycloaddition. Tetrahedron Lett. 2006, 47, 6681–6684.

Hausner S.H. et al. In Vivo Positron Emission Tomography (PET) Imaging with an ανβ6 Specific Peptide Radiolabeled using ¹⁸F-Click Chemistry: Evaluation and Comparison with the Corresponding 4-[¹⁸F]Fluorobenzoyl- and 2-[¹⁸F]Fluoropropionyl-Peptides. J. Med. Chem. 2008, 5901–5904.

Add to inquiry

Product No.Filling amountQuantity
Product No.: 6302Filling amount: 10 mg
Product No.: 6302Filling amount: 100 mg
Product No.: 6302
Product was added