Aminomethylcyclopentane hydrochloride58714-85-531 % similar 2-Hydroxymethyloxetane61266-70-431 % similar 2-(Bromomethyl)oxetane939759-23-631 % similar (Tetrahydrofuran-3-yl)methanamine hydrochloride184950-35-430 % similar (2S)-3-Cyclohexyl-2-methylpropan-1-amine2248183-91-530 % similar