(±)-11-nor-9-Carboxy-Δ⁹-THC (Racemic mixture - not to be used for immunoassay), 100 μg/mL

11-nor-9-Carboxy-Δ⁹-THC, also known as THC acid, is the main secondary metabolite of Δ⁹-THC found in the urine or blood of cannabis users. This certified reference solution is suitable as starting materials in the preparation of calibrators and controls for THC testing by GC/MS or LC/MS in forensic analysis, urine drug testing, or clinical toxicology.

Recommended Storage Condition
Freeze (-20°C)