Investigation of a recently detected THCCOOH isomer: Post mortem findings and comparison with Δ8-THCCOOH

The unknown THCCOOH isomer accompanied THCCOOH and was detected in various human body compartments. The present in-vitro metabolism study proved that it is not of Δ8-THCCOOH structure nor that it is metabolically formed by the human CYP2C9 isoform.