ISO Provisionally Approves New Common Name “Triflupyroxazin” for Herbicide from Liaoning Cynda Chemical
10 December 2025, US: The ISO Maintenance Agency has provisionally approved a new common name, triflupyroxazin, for an N-phenylimide herbicide developed by Liaoning Cynda Chemical Co., Ltd. The molecule, currently identified by the development code CDH22117, also carries the Chinese common name 氟丙草嗪.
The chemical substance is formally described as:
3-[7-fluoro-3,4-dihydro-3-oxo-4-(2-propyn-1-yl)-2H-1,4-benzoxazin-6-yl]-1-methyl-6-(trifluoromethyl)-2,4(1H,3H)-pyrimidinedione [CAS 134554-02-2].
The provisional approval triggers a consultation window during which companies or stakeholders may file objections—for instance, if the name triflupyroxazin is believed to infringe on an existing trademark. All objections must be submitted to the ISO Maintenance Agency no later than 5 June 2026.
If no objections are received by the deadline, triflupyroxazin will move to full approval status and be incorporated into the next edition of ISO 1750, which covers both preferred names and ISO common names for pesticides.
The French version of the provisionally approved common name has been listed as « triflupyroxazine » (nf).
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