((Dimethylamino)methylene)malonitrile ((Dimethylamino)methylene)malononitrile 16849-88-0 BRN 2038990 EINECS 240-873-7 MALONONITRILE, ((DIMETHYLAMINO)METHYLENE)- NSC 168421 Propanedinitrile, ((dimethylamino)methylene)- (9CI) alpha-Cyano-beta-dimethylaminoacrylonitrile