1(2H)-Naphthalenone, 3,4-dihydro-2,5,8-trimethyl- 10468-59-4 2,5,8-Trimethyl-1-tetralone 2,5,8-Trimethyl-3,4-dihydro-1(2H)-naphthalenone 3,4-Dihydro-2,5,8-trimethyl-1(2H)naphthalenone NSC80434