1-Pentyn-3-ol, 4-methyl-, carbamate 14056-65-6 4-03-00-00065 (Beilstein Handbook Reference) BRN 1758710 Carbamic acid, 1-isopropyl-2-propynyl ester Carbammato di 2-methyl-delta 4,5-pentin-2-olo [Italian]