Pesticide products · United States

HM-1821-A Herbicide

5905-641

HM-1821-A Herbicide · pesticide product · S-Metolachlor 41.45%, Tolpyralate 1.12% · federally registered in United States. Registrant: HELENA AGRI-ENTERPRISES, LLC, D/B/A HELENA CHEMICAL COMP.

Other trade names: EMPYROS

Product details

EPA registration number: 5905-641
Registrant: HELENA AGRI-ENTERPRISES, LLC, D/B/A HELENA CHEMICAL COMP
Active ingredients: S-Metolachlor 41.45%, Tolpyralate 1.12%
Parallel trade: no
Other trade names: EMPYROS

Source and data date

Source: U.S. Environmental Protection Agency (EPA), Office of Pesticide Programs, Pesticide Product Information System (PPIS) and Pesticide Product Label System (PPLS), data as of 2026-10-26 (PPIS) / 2026-10-28 (PPLS). EPA-produced data, public domain. Data as of: 10/29/2026.

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