Triclopyr 98% technical
Common name triclopyr (BSI, E-ISO, F-ISO, ANSI, WSSA); no name (Eire)
IUPAC name 3,5,6-trichloro-2-pyridyloxyacetic acid
Chemical Abstracts name [(3,5,6-trichloro-2-pyridyl)oxy]acetic acid
CAS RN [55335-06-3]
CAS RN [64700-56-7]
Mol. wt. 256.5 M.f. C7H4Cl3NO3 Form Fluffy, colourless solid. M.p. 150.5 ºC B.p. Decomposes at 208 ºC V.p. 0.2 mPa (25 ºC, vapour pressure balance) KOW logP = 0.42 (pH 5), -0.45 (pH 7), -0.96 (pH 9) S.g./density 1.85 (21 ºC). Solubility In water 0.408 (purified), 7.69 (pH 5), 8.10 (pH 7), 8.22 (pH 9) (all in g/l, 20 ºC). In acetone 581, acetonitrile 92.1, hexane 0.09, toluene 19.2, dichloromethane 24.9, methanol 665, ethyl acetate 271 (all in g/l). Stability Stable under normal storage conditions and to hydrolysis, but subject to photodecomposition, DT50 <12 h. pKa 3.97
Mol. wt. 356.6 M.f. C13H16Cl3NO4
Mol. wt. 357.7 M.f. C13H19Cl3N2O3
Biochemistry Synthetic auxin (acting like indolylacetic acid). Mode of action Selective systemic herbicide, rapidly absorbed by the foliage and roots, with translocation throughout the plant, accumulating in meristematic tissue. Induces auxin-type responses in susceptible species (mainly broad-leaved weeds, grass weeds being unaffected at normal application rates).
Uses Control of woody plants and many broad-leaved weeds (e.g. nettles, docks, brambles, gorse, broom) in grassland, uncultivated land, industrial areas, coniferous forests, plantation crops, and rice fields. In plantation crops (oil palm, rubber) at 125-250 g a.e./ha for covercrop maintenance, and at 0.72-1.0 kg a.e./ha to control Eupatorium odoratum and other problem plants; in pastures at 1-2 kg/ha to control annual and perennial herbaceous weeds, and at 2-4 kg/ha against Rubus spp. and other woody plants; in forestry at 4-8 kg/ha for site preparation, and at 1.5-2.0 kg/ha for conifer release; for industrial sites at 2-8 kg/ha; in rangeland at 0.24-1.0 kg/ha. Phytotoxicity Clovers are sensitive, as also are larch, lodgepole pine, ornamentals, and edible crops.
Triclopyr 98% technical: 25 kg carton drum