2-[3-(3-Butyl-1,1-dimethyl-1,3-dihydro-benzo[e]indol-2-ylidene)-propenyl]- Suppliers, 2-[3-(3-Butyl-1,1-dimethyl-1,3-dihydro-benzo[e]indol-2-ylidene)-propenyl]- Manufacturers.