1,8-Diamino-p-menthane80-52-4100 % similar 1-Amino-1-methylcyclohexane6526-78-944 % similar 1-Methylcyclopropylamine hydrochloride88887-87-044 % similar 1-Methylcyclobutan-1-amine hydrochloride174886-05-641 % similar 2-Amino-2-methyl-1,3-propanediol115-69-533 % similar