70070-08-5 BRN 1403311 N-((3,4-Dihydro-6,7-dimethoxy-1H-2-benzopyran-1-yl)methyl)-N'-(3-fluorophenyl)thiourea Thiourea, N-((3,4-dihydro-6,7-dimethoxy-1H-2-benzopyran-1-yl)methyl)-N'-(3-fluorophenyl)-