1579-21-1 2(1H)-Naphthalenone, octahydro-, (4aR,8aS)-rel- 2(1H)-Naphthalenone, octahydro-, cis- 5779-29-3 EINECS 216-422-5 NSC 59022 Octahydro-2(1H)-naphthalenone cis-2-Decalone cis-Octahydronaphthalene-2(1H)-one cis-beta-Decalone