[Glyphosate]
N-(Phosphonomethyl)glycine CAS[1071-83-6]
Trade name; glyphosate (J, I, A, B): Roundup, Rodeo, Ortho Groundclear Total Vegetation Killer (5% glyphosate by mass (as isopropylamine salt))
Chemical formula;
It is usually formulated as the isopropylamine salt and in case of the most common formulation Roundup Ultra combined with the surfactant polyoxyethylene amine (POEA) (Giesy et al., 2000). AMPA (amino-methyl-phosphonic acid) is degradation product. (ref. ID; 6751)
C3H8NO5P (free)
C3H7NaO3P (sodium salt)
C3H17N2O5P (isopropylammonium salt)
C3H16NO5PS (trimethylsulfonium salt)
Chemical characteristics; Glyphosate (N-(phosphonomethyl)glycine): water solubility 10.5 g L-1 at 20 degrees C, log Pow -3.2 at 25 degrees C. (ref. ID; 6751)
Purpose for use; Non-selective, post-emergence herbicide. It is utilized for weed control, i.e. in agriculture, forestry, urban areas and even aquaculture. (ref. ID; 6751)
Toxicity; LD50 (oral): rat 4320 mg/kg
The toxicity of technical-grade glyphosate to aquatic invertebrates is minor (LC50: > 55 mg L-1 glyphosate, WHO, 1994) (ref. ID; 6751)
Test organisms;
Protozoa: Tetrahymena thermophila (ref. ID; 4500)
Oligochaeta: Aporrectodea caliginosa (ref. ID; 6072)
Oligochaeta: Eisenia fetida (ref. ID; 4582)
Oligochaeta: Lumbriculus variegatus (ref. ID; 6751)