CAS 40365-61-5 appears in our catalog under these names: 2-(3-Butynyloxy)tetrahydro-2H-pyran, 2-(3-Butynyloxy)tetrahydro-2H-pyran, 97%, 2-(3-Butynyloxy)tetrahydro-2H-pyran 95%, 2-(But-3-yn-1-yloxy)tetrahydro-2H-pyran, 98%, 98%, 2-(But-3-yn-1-yloxy)tetrahydro-2H-pyran, 99.42%. Offered by: TRC, Biosynth, Thermo Scientific (Acros), Ambeed, Sigma-Aldrich. Available pack sizes: 1g, 5g, 25g, 500g, 100g, 250mg, 10g, 50g.