(2R-(2alpha,2abeta,4aalpha,7aalpha,7bbeta))-2-((2,4-Dihydroxy-6-methylbenzoyl)oxy)-2,2a,4a,5,6,7,7a,7b-octahydro-2a-hydroxy-6,6,7b-trimethyl-1H-cyclobut(e)indene-3-carboxylic acid 129251-06-5 1H-Cyclobut(e)indene-3-carboxylic acid, 2-((2,4-dihydroxy-6-methylbenzoyl)oxy)-2,2a,4a,5,6,7,7a,7b-octahydro-2a-hydroxy-6,6,7b-trimethyl-, (2R-(2alpha,2abeta,4aalpha,7aalpha,7bbeta))- Armillaric acid