2063-19-6 3-Butyn-2-ol, 4-bromo-2-methyl- 4-01-00-02232 (Beilstein Handbook Reference) 4-Bromo-2-methyl-3-butyn-2-ol BRN 1523732 Dimethyl(beta-bromoethynyl)carbinol Dimethyl-bromaethenyl-carbinol [German]