Exploring Δ9-THC-COOH. To explore a different substance…

Δ9-THC-COOH
(6aR,10aR)-1-Hydroxy-6,6-dimethyl-3-pentyl-6a,7,8,10a-tetrahydro-6H-dibenzo[b,d]pyran-9-carboxylic acid
 4625  C21H28O4  344.445
 Cannabinoid
 InChI=1S/C21H28O4/c1-4-5-6-7-13-10-17(22)19-15-12-14(20(23)24)8-9-16(15)21(2,3)25-18(19)11-13/h10-12,15-16,22H,4-9H2,1-3H3,(H,23,24)/t15-,16-/m1/s1
 YOVRGSHRZRJTLZ-HZPDHXFCSA-N This stereoisomer Any stereoisomer
 CCCCCc1cc(O)c2c(c1)OC([C@H]1[C@H]2C=C(CC1)C(=O)O)(C)C