1alpha,2alpha-Epoxyhexahydrocannabinol 3H-Oxireno(3,4)benzo(1,2-c)(1)benzopyran-9-ol, 1a,2,3a,4,9a,9b-hexahydro-1a-methyl-7-pentyl-, (1aS-(1alpha,3aalpha,9abeta,9balpha))- 70711-55-6 8 alpha,9 alpha-Epoxyhexahydrocannabinol EHHC