Here's the good stuff: https://www.lipomed-usa.com/en/cannabinoide https://www.lipomed-usa.com/en/cannabinoide Lipomed and a few other companies actually sell

Here's the good stuff: https://www.lipomed-usa.com/en/cannabinoide https://www.lipomed-usa.com/en/cannabinoide Lipomed and a few other companies actually sell all kinds of psychoactives and narcotics as reference standards for toxicology, but the market for cannabis references got a lot larger since most states require laboratory assay of cannabis products. I think gas chromatography by flame ionization is the typical method but you have to calibrate your equipment against some really top-shelf stuff.