2-hydroxyethyl 2-hydroxybenzoate - (4aS,6aS,11bR,13bS)-4,4,6a,9-tetramethyl-1,2,3,4,4a,5,6,6a,11b,13b-decahydrobenzo[a]furo[2,3,4-mn]xanthen-11-ol (1:1)