1,3-cyclopentanedione, 2-[(dimethylamino)methylene]- 2-[(dimethylamino)methylene]cyclopentane-1,3-dione InChI=1/C8H11NO2/c1-9(2)5-6-7(10)3-4-8(6)11/h5H,3-4H2,1-2H