5 9 13-pentadecatrien-2-one 6 10 14-trimethyl- (e e)- July 8, 2019 16 32 64 128 6 10 14-trimethyl-5 9 13-pentadecatrien-2-one 2 6 10-trimethyl 14-ethylene-14-pentadecane 2-pentadecanone 6 10 14-trimethyl-