Monosodium methyl arsonate
Monosodium methyl arsenate is an arsenic-based herbicide. It is an organo-arsenate; less toxic than the inorganic form of arsenates. However, the EPA states that all forms of arsenic are a serious risk to human health and the United States' Agency for Toxic Substances and Disease Registry ranked arsenic as number 1 in its 2001 Priority List of Hazardous Substances at Superfund sites.
Arsenic is classified as a Group-A carcinogen. The EPA states that:
Trade names include:
- Target 6 Plus
- Target 6.6
- MSMA 6 Plus
- MSMA 6.6