Elsohly M A, Boeren E G, Turner C E
Experientia. 1978 Sep 15;34(9):1127-8. doi: 10.1007/BF01922908.
The structures of 2 new polyhydroxylated cannabinoids, (+/-)9,10-dihydroxy-delta6a(10a)-tetrahydrocannabinol and (+/-)8,9-dihydroxy-delta6a(10a)-tetrahydrocannabinol, obtained from a hexane extract of an Indian Cannabis variant were determined by spectral means and correlation with cannabinol.