11H-DIBENZO(b,e)(1,4)DIOXEPIN-6-CARBOXYLIC ACID, 4-FORMYL-3-HYDROXY-8-METHOXY-1, 11H-Dibenzo(b,e)(1,4)dioxepin-6-carboxylic acid, 4-formyl-3-hydroxy-8-methoxy-1,9-dimethyl-11-oxo- 7299-11-8 NSC 92186 Parellic acid Psoromic acid Psoromic acid (parellic acid)