(trans)-2-Mercaptocyclobutylmethylamine hydrochloride 41551-80-8 CYCLOBUTANETHIOL, 2-AMINOMETHYL-, HYDROCHLORIDE, (E)- Cyclobutane, 1-aminomethyl-2-mercapto-, hydrochloride Methylamine, 2-mercaptocyclobutyl-, hydrochloride, (E)-