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White, odorless solid used as a post-emergence herbicide. Glyphosate is a phosphoorganic compounds that has been used to control ruderal vegetation. It has no residual activity.

Synonyms and Related Terms

n-(phosphonomethyl)glycine; Roundup (mono(isopropylammonium) salt [Monsanto]; Polado (sesquisodium salt)


  • LD50 = 5600 mg/kg
  • Contact may cause irritation and redness.
  • Combustion produces toxic fumes.
  • Alligare: SDS

Physical and Chemical Properties

Soluble in water. Insoluble in most organic solvents.

Composition C3H8NO5P
CAS 1071-83-6
Melting Point 230 C
Density 1.7 g/ml
Molecular Weight mol. wt. = 169.1

Resources and Citations

  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 4522
  • G.Caneva, M.P.Nugari, O.Salvadori, Biology in the Conservation of Works of Art, ICCROM, Rome, 1991

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