TX Organic Research Center



MSMA (Monosodium methanearsonate)

General Information

  • MSMA product names
  • Chemical Class: Arsenical herbicide
  • Uses: No registered uses historically used in cotton production
  • Alternatives: Agriculture
  • Beyond Pesticides rating: Toxic

Health Effects

  • Cancer: Possible (23)
  • Endocrine Disruption: Not documented
  • Reproductive Effects: Yes (23)
  • Neurotoxicity: Not documented
  • Kidney/ Liver Damage:Yes (23)
  • Sensitizer/ Irritant: Not documented
  • Birth/ Developmental Defects: Not documented

Environmental Effects

  • Detected in Groundwater: Not documented
  • Detected in Streams: Not documented
  • Potential Leacher: Yes (27)
  • Toxic to Birds: Yes (23)
  • Toxic to Fish/ Aquatic Organisms: Yes (23)
  • Toxic to Bees: Yes (23)
  • Toxic to Mammals: Not documented
  • Long-Range Transport: Not documented

Additional Information


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