Name : 2 - PENTYN - 1 - OL. Molecular Formula : C5H8O. Molecular Weight : 84.12. CAS : 6261- 22- 9. Purity Grade : >98%. Boiling Point (bp) : 610C -62 0C /15mm Density : 0.910. ELINCS/EINECS Number : 2284112 BRN : 1734007 Beilstein Index : 1, 3, 1981 Hazard Symbol : Flammable / Keep Cold Packaging Standard : UN 1987 CH3CH2C CCH2OH