Tebuthiuron (95% tech, 20% GR)

Common name: Tebuthiuron

Chemical name: 1-(5-tert-butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea

Structural formula:

Commercial form: 95% Technical grade, 20% GR

Technical specification:

Content	95% min
Moisture	0.5% max
Acidity	0.1% max
Insoluble in acetone	0.1% max

Physicla chemicstry: Mol, wt 220.3 M.f. C₉H₁₆N₄OS; Form: Colourless, odourless solid .M.p. 161.5-164°C(decomp.) V.p. 0.27 mPa (25°C K ow logP=1.79 (pH7, 25°C Solubility ln water 2.5g/; (25°C.ln benzene 3.7, hexane 6.1.2-methoxyethanol 60, acetonitrile 60. acetone 70, methanol 170. chloroform 250 (all in g/l, 25°C, Stability Stable at 52°C (highest storage Temperature tested). Stable in aqueous media between pH 5 and 9. On hydrolysis, DT50(25°C >64d (pH 3,6 and 9).

Uses: Broad-spectrum herbicide for control of herbaceous and woody plants (0.6-4.5 kg a.i./ha), annual weeds ()1.3-4.5 kg/ha, many perennial grass and broad-leaved weeds (2.2-6.8kg/ha). Uses include control of total vegetation in non-crop areas, undesirable woody plants in pastures and rangeland, and grass and broad-leaved weeds in sugar cane.