1,1-Dimethylpropargylamine2978-58-7100 % similar 2-Amino-2-methylpropanenitrile19355-69-243 % similar 3,3-Dimethyl-1-butyne917-92-042 % similar 3-Chloro-3-methyl-1-butyne1111-97-336 % similar 2-Methylbut-3-yn-2-ol115-19-536 % similar