Pesticide>> Herbicides >> Glyphosate

Description:ISO 1750 (published)
IUPAC: N-(phosphonomethyl)glycine
CAS: 1071-83-6
Formula: C3H8NO5P
Activity: herbicides (organophosphorus herbicides)
Notes: When this substance is used as an ester or a salt, its identity should be stated, for example glyphosate-ammonium [40465-66-5], glyphosate-isopropylammonium [38641-94-0], glyphosate-sesquisodium [70393-85-0], glyphosate-trimesium [81591-81-3].

Structure:

Glyphosate APPLICATIONS
Biochemistry Inhibits 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS), an enzyme of the aromatic acid biosynthetic pathway. This prevents synthesis of essential aromatic amino acids needed for protein biosynthesis. Mode of action Non-selective systemic herbicide, absorbed by the foliage, with rapid translocation throughout the plant. Inactivated on contact with soil. Uses Control of annual and perennial grasses and broad-leaved weeds, pre-harvest, post-planting/pre-emergence and in stubble, in cereals, peas, beans, oilseed rape, flax and mustard, at c. 1.5-2 kg/ha; as a directed spray in vines and olives, at c. 4.3 kg/ha; in orchards, pasture, forestry and industrial weed control, at c. 4.3 kg/ha. As an aquatic herbicide, at c. 2 kg/ha. Formulation types SG; SL. Compatibility Mixing with other herbicides may reduce the activity of glyphosate.

Glyphosate ANALYSIS
Product analysis by hplc (AOAC Methods, 1995, 983.10; CIPAC Handbook, 1985, 1C, 2130). Residues determined by gc (Pestic. Anal. Man., 1979, II ) or by hplc with o-phthalaldehyde post-column reaction specific for primary amines (J. Agric. Food Chem., 34(6), 955-960 (1986)). In environmental water, by hplc determination by o-phthalaldehyde post-column reaction system (AOAC Methods, 1995, 991.08, 10.6.18).

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