7-Hydroxy- DELTA 8-tetrahydrocannabinols of the formula WHEREIN R1 and R2 are both hydrogen atoms or one is a hydrogen atom and the other hydroxy process psychotropic activity and are produced by the microbiological hydroxylation of a corresponding 7-desoxy compound with a microorganism of the genus Streptomyces or Pellicularia.
7-Hydroxy-delta 8-tetrahydrocannabinols and microbiological production thereof