1-Aminocyclopropanecarbonitrile hydrochloride127946-77-4100 % similar 2-Amino-2-methylpropanenitrile19355-69-238 % similar 3-Methylazetidine-3-carbonitrile hydrochloride936850-33-834 % similar Aminoacetonitrile hydrochloride6011-14-932 % similar 1-Methylcyclopropylamine hydrochloride88887-87-032 % similar 4-Cyano-4-phenylpiperidine hydrochloride51304-58-631 % similar