hu-345 hu-345 hu-345 (cannabinol quinone) is a drug that is able to inhibit aortic ring angiogenesis more potently than its parent compound cannabinol (cbn). it exhibits no psychoactive effects on the body. hu-345identifiers iupac name 6,6,9-trimethyl-3-pentyl-1h-benzochromene-1,4(6h)-dione pubchem cid11198119chemspider9373188 ychemblchembl127671 ychemical and physical dataformulac21h24o3molar mass324.420 g·mol−13d model (jsmol)interactive image smiles o=c2\c(=c/c(=o)c=3c1c(ccc(c1)c)c(oc2=3)(c)c)ccccc inchi inchi=1s/c21h24o3/c1-5-6-7-8-14-12-17(22)18-15-11-13(2)9-10-16(15)21(3,4)24-20(18)19(14)23/h9-12h,5-8h2,1-4h3 ykey:ufdytrqmixjhth-uhfffaoysa-n y (verify) hu-345 can be derived through the oxidative degradation of cbn.