5f-adb-pinaca 5f-adb-pinaca 5f-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 0.24 nm and 2.1 nm respectively. 5f-adb-pinacalegal statuslegal status ca: schedule ii de: npsg (industrial and scientific use only) uk: class b identifiers iupac name n-(1-amino-3,3-dimethyl-1-oxobutan-2-yl)-1-(5-fluoropentyl)-1h-indazole-3-carboxamide cas number1863065-90-0pubchem cid119058050chemspider52085408uniilol2kqm530chemical and physical dataformulac19h27fn4o2molar mass362.449 g·mol−13d model (jsmol)interactive image smiles cc(c)(c)(c(=o)n)nc(=o)c1c2ccccc2n(n1)cccccf inchi inchi=1s/c19h27fn4o2/c1-19(2,3)16(17(21)25)22-18(26)15-13-9-5-6-10-14(13)24(23-15)12-8-4-7-11-20/h5-6,9-10,16h,4,7-8,11-12h2,1-3h3,(h2,21,25)(h,22,26)/t16-/m1/s1key:soyddjybrcnnit-mrxnpfedsa-n metabolism twelve 5f-adb-pinaca major metabolites were identified in several incubations with cryopreserved human hepatocytes. major metabolic reactions included oxidative defluorination followed by carboxylation. legality 5f-adb-pinaca is listed in the fifth schedule of the misuse of drugs act (mda) and therefore illegal in singapore as of may 2015.