hu-336 hu-336 hu-336 is a strongly antiangiogenic compound, significantly inhibiting angiogenesis at concentrations as low as 300 nm. it inhibits angiogenesis by directly inducing apoptosis of vascular endothelial cells without changing the expression of pro- and antiangiogenic cytokines and their receptors. hu-336 is highly effective against tumor xenografts in nude mice. although it is technically the oxidized quinone of delta-8 thc, it is entirely non psychoactive. hu-336identifiers iupac name (6ar,10ar)-6,6,9-trimethyl-3-pentyl-6a,7,10,10a-tetrahydro-1h-benzochromene-1,4(6h)-dione cas number19542-59-7 ypubchem cid11370880chemspider9545797 yuniiut665ey7f2chemical and physical dataformulac21h28o3molar mass328.452 g·mol−13d model (jsmol)interactive image smiles o=c\2c=1oc(3(c=1c(=o)/c=c/2ccccc)c/c(=c\c3)c)(c)c inchi inchi=1s/c21h28o3/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/h9,12,15-16h,5-8,10-11h2,1-4h3/t15-,16-/m1/s1 ykey:gozglshddojpjs-hzpdhxfcsa-n y (verify)