1,3-Indandione, 2-(3-ethoxy-1-indenylidene)- 1H-Indene-1,3(2H)-dione, 2-(3-ethoxy-1H-inden-1-ylidene)- 2-(3-Ethoxy-1-indenylidene)-1,3-indandione 2-(3-Ethoxy-1H-inden-1-ylidene)-1H-indene-1,3(2H)-dione 56525-08-7 Bindon athylather Bindon ethyl ether Bindone ethyl ether