for the following products
N-(6-Cyano-2-methyl-7-oxo-4,8-dioxa-2,5-diazadec-5-en-3-ylidene)-N-methylmethanaminium tetrafluoroborate | O-Cyanoethoxycarbonylmethylideneamino-1,1,3,3-tetramethyluronium tetrafluoroborate | TOTU and O-[(Ethoxycarbonyl) cyanomethylenamino] N,N,N',N'-tetramethyluronium tetrafluoroborate
