155111-88-9 2,4-Pentadienoic acid, 5-(3,4,4a,5,6,7,8,8a-octahydro-2,6,8-trimethyl-3-oxo-1-naphthalenyl)- 5-(1-Ene-3-oxo-2,6,8-trimethyldecalin)-2,4-pentadienoic acid Hynapene B