Sub Group: Research Compounds Catalog Number: 12967 Formula: C21H20Cl2O3 CAS Number: 52645-53-1 Molecular Weight: 391.29 Synonyms: FMC-33297, NIA-33297, NRDC-143, PP-557, SBP-1513, Ambush, Corsair, Dragnet, Ectiban, Eksmin, Nix, Pounce, Permasect, Ridect,