Metrozone (21087-64-9)

Metrozone (21087-64-9)

Use Industrial mass production

alias Crazine;Terbutazine;Sektazine;4-Amino-6-tert-butyl-4,5-dihydro-3-methylthio-1,2,4-triazin-5(4H)-one; 4-Amino-6-tert-butyl-3-methylthio-1,2,4-triazin-5-one

Purity 99%

Specification 25kg/drum

Molecular formula Metrozone

Product English Name Metribuzin

CAS: 21087-64-9

Chinese alias: 4-amino-6-(1,1-dimethylethyl)-3-methylthio-1,2,4-triazine-5(4H)-one (9CI); Sike; Sikezin ; Cyclazine; Terbumine; Cyclazine; 4-Amino-6-tert-butyl-4,5-dihydro-3-methylthio-1,2,4-triazine-5(4H)- Ketone; 4-Amino-6-tert-butyl-3-methylthio-1,2,4-triazin-5-one

English name: Metribuzin

Properties: Melting Point; 125°C Density; 1.28 Refractive Index; 1.6390 (estimate) Flash Point; 2 °C Storage Conditions; ) EPA Chemical Substance Information 1,2,4-Triazin-5( 4H)-one, 4-amino-6-(1,1-dimethylethyl)- 3-(methylthio)-(21087-64-9)

purposes: chemical properties; pure white crystalline solid. m.p.125.5～126.5℃, vapor pressure <1.333×10-3Pa at 20℃, <2.666×10-2Pa at 60℃, relative density 1.28. The solubility in organic solvents is: dichloro*methane>100%, isoacetone 1%~10%, hexane 0.1%~1%, methanol 450g/L, toluene 130g/L; the solubility in water is 0.12%. Industrial product m.p.120～125℃. purposes; selective herbicides. The agent is absorbed by the weed root system and conducted to the upper part with the transpiration flow. It mainly exerts herbicidal activity by inhibiting the photosynthesis of sensitive plants. After application, the germination of sensitive weeds will not be affected, and the leaves will turn green after emergence. Leafy weeds, also applicable to certain grass weeds, are less effective against perennial weeds. Generally, 70% wettable powder 7.5~11.4g/100m2, or 75% dry suspension 7.0~10.7g/100m2 is used in northern soybean fields, and 4.5kg of water is added for soil surface treatment after sowing and before seedlings. In southern soybean fields, the soil is light and the climate is warm. Wet, the dosage can be reduced. Uses; selective systemic herbicide, can be used in soybeans, potatoes, tomatoes, alfalfa, peas, carrots, sugarcane, shoots, pineapples, etc., to control a variety of broadleaf weeds and grass weeds.

Uses: It can be widely used in soybean, potato, tomato, sugarcane, asparagus, pineapple and other crops to control broad-leaved weeds production method; 3,3-dimethylbutyronitrile was reacted for 1h, cooled to 20°C, poured into ice water, stirred for 1h, recrystallized from ethanol to obtain 3-sulfanyl-4-amino-5-imino-6-tert-butylene base-1,2,4-triazine (melting point 181°C). It was reacted with ethanol and acid at 100 °C for 2 h, cooled to 20 °C, the crystals were separated, filtered and dried to obtain 3-thio-4-amino-6-tert-butyl-1,2,4-triazine- 5-keto (melting point 215-217°C). maximum