norwogonin norwogonin norwogonin, also known as 5,7,8-trihydroxyflavone (5,7,8-thf), is a flavone, a naturally occurring flavonoid-like chemical compound which is found in scutellaria baicalensis (baikal skullcap). it has been found to act as an agonist of the trkb, the main signaling receptor of brain-derived neurotrophic factor (bdnf), and appears to possess roughly the same activity in this regard to that of the closely related but more well-known tropoflavin (7,8-dhf). norwogoninclinical dataother names5,7,8-trihydroxyflavone; 5,7,8-thfidentifiers iupac name 5,7,8-trihydroxy-2-phenylchromen-4-one cas number4443-09-8pubchem cid5281674chemspider4444993unii70u0wt21ibkeggc10113chebichebi:7642chemblchembl485250comptox dashboard (epa)dtxsid20196171 chemical and physical dataformulac15h10o5molar mass270.240 g·mol−13d model (jsmol)interactive image smiles c1=cc=c(c=c1)c2=cc(=o)c3=c(o2)c(=c(c=c3o)o)o inchi inchi=1s/c15h10o5/c16-9-6-11(18)14(19)15-13(9)10(17)7-12(20-15)8-4-2-1-3-5-8/h1-7,16,18-19hkey:zfkkrrmupbbyrs-uhfffaoysa-n