adb-pinaca adb-pinaca adb-pinaca is a cannabinoid designer drug that is an ingredient in some synthetic cannabis products. it is a potent agonist of the cb1 receptor and cb2 receptor with ec50 values of 0.52 nm and 0.88 nm respectively. like mdmb-fubinaca, this compound contains an amino acid residue of tert-leucine. adb-pinacalegal statuslegal status ca: schedule ii de: npsg (industrial and scientific use only) uk: class b us: schedule i identifiers iupac name n-(1-amino-3,3-dimethyl-1-oxo-2-butanyl)-1-pentyl-1h-indazole-3-carboxamide cas number1633766-73-0 ypubchem cid86280478chemspider29342129uniiu1q4f41c9ucomptox dashboard (epa)dtxsid301010007 chemical and physical dataformulac19h28n4o2molar mass344.459 g·mol−13d model (jsmol)interactive image smiles cccccn1c2=cc=cc=c2c(=n1)c(=o)nc(c(=o)n)c(c)(c)c inchi inchi=1s/c19h28n4o2/c1-5-6-9-12-23-14-11-8-7-10-13(14)15(22-23)18(25)21-16(17(20)24)19(2,3)4/h7-8,10-11,16h,5-6,9,12h2,1-4h3,(h2,20,24)(h,21,25)key:fwtaraxqgjrqkn-uhfffaoysa-n side effects adb-pinaca has been linked to multiple hospitalizations and deaths due to its use. metabolism nineteen adb-pinaca major metabolites were identified in several incubations with cryopreserved human hepatocytes. major metabolic reactions included pentyl hydroxylation, hydroxylation followed by oxidation (ketone formation), and glucuronidation. legality adb-pinaca is listed in the fifth schedule of the misuse of drugs act (mda) and therefore illegal in singapore as of may 2015. in the united states, it is a schedule i controlled substance. as of october 2015 adb-pinaca is a controlled substance in china.