High Effective Agrochemicals Metribuzin 70%WP

Active ingredient

Metribuzin

Chemical name

4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one

Classification

Herbicide / Agrochemical

Formulation

95%TC, 50%WP, 70%WP, 44%SC, 70%WDG

Biochemistry

Photosynthetic electron transport inhibitor at the photosystem II receptor site. Selectivity is due to metabolism (mostly
conjugation) within the plant (C. Fedtke, Proc. Br. Crop Prot. Conf. - Weeds, 1993, 1, 221).

Mode of action

Selective systemic herbicide, absorbed predominantly by the roots, but also by the leaves, with translocation acropetally in the
xylem.

Usage

Pre- and post-emergence control of many grasses and broad-leaved weeds in soya beans, potatoes, tomatoes, sugar cane, alfalfa,
asparagus, maize and cereals, at 0.07-1.45 kg/ha.

Applications

Oral: Acute oral LD50 for male rats 510, female rats 322, mice c. 700, guinea pigs c. 250, cats >500 mg/kg.
Skin and eye: Acute percutaneous LD50 for rats >20 000 mg/kg. Not irritating to skin and eyes (rabbits).
Inhalation: LC50 (4 h) for rats >0.65 mg/l air (dust).
NOEL: (2 y) for rats and dogs 100, mice c. 800 mg/kg diet.

Certificate of quality

Metribuzin 95%TC

Item
Appearance
A.I. Content
Water
Acetone insolubles
Acidity (as H2SO4))

Specification
Off-white powder
≥95%
≤1.0%
≤1.0%
≤0.3%

Metribuzin 70%WDG

Item
Appearance
A.I. content
Suspensibility
Wetting time
pH value
Water
Dispersibility
Fineness (through 44um test sieve)
Persistent foam

Specification
Off-white to light yellow granular
≥70%
≥75%
≤60
6.0~10.0
≤3.0
≥75%
≥95%
≤25ml