Chemical Name: 4-amino-6-tert-butyl-4,5-dihydro-3-methylthio-1,2,4-triazin-5-one

Formula: C₈H₁₄N₄OS

Molecular weight: 214.29

CAS No.: 21087-64-9

Appearance: white powder with a slightly sharp, sulfurous odor.

Melting Point: 125-126.5°C.

Vapour Pressure: 0.058m Pa at 20°C.

Stability: Solubility in water 1050mg/L, Soluble in methanol, ethanol and glycol ether acetate.

Toxicity: Oral LD₅₀ 1090-2300mg/kg(rat), dermal LD₅₀ ( rabbits) is 2000 mg/kg.

Specification: 95%TC, 70%WP,48%SL

Uses: metribuzin is a selective triazine herbicide which inhibits photosynthesis of susceptible plant species. It is used for control of annual grasses and numerous broadleaf weeds in field and vegetable crops, in turfgrass, and on fallow lands.