Product Specifications
| Prod Model: |
SV054 |
| CAS No.: |
21087-64-9 |
| Appearance: |
Powder |
| Usage: |
Selective |
| Composition: |
Organic |
| Colour: |
White |
Product Description
Common Name
Metribuzin
IUPAC
4-amino-6-
tert-butyl-4,5-dihydro-3-methylthio-1,2,4-triazin-5-one
or
4-amino-6-
tert-butyl-3-methylthio-1,2,4-triazin-5(4
H)-one
CAS
4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4
H)-one
CAS No.
21087-64-9
Molecular Formula
C
8H
14N
4OS
Molecular Structure
General Product Information
Category
Herbicides > Triazinone herbicides
Activity
Herbicide
Premix
Chlorimuron-ethyl+metribuzin
Metolachlor+metribuzin
Rimsulfuron+metribuzin
chlorimuron+metribuzin+flumioxazin
Liquid suspension, water dispersible granules, dry flowable.
Premix Parters: atrazine;
Physical & Safety Data
Physical Properties
Molecular weight:214.3; Physical form:White crystals, with a weak characteristic odour. Density:1.28 (20 °C); Melting point:126.2 °C; Vapour pressure:0.058 mPa (20 °C); Henry constant:1 ×10-5 Pa m3 mol-1 (20 °C, calc.); Partition coefficient(n-octanol and water):logP = 1.6 ( pH 5.6, 20 °C); Solubility:In water 1.05 g/l (20 °C). In dimethylformamide 1780, cyclohexanone 1000, chloroform 850, acetone 820, methanol 450, dichloromethane 340, benzene 220, n-butanol 150, ethanol 190, toluene 87, xylene 90, isopropanol 77, hexane 1.0 (all in g/l, 20 °; Stability:Relatively stable to u.v. irradiation. At 20 °C, stable to dilute acids and alkalis; DT50 (37 °C) 6.7 h ( pH 1.2); DT50 (70 °C) 569 h ( pH 4), 47 d;
Toxicology
Oral:Acute oral LD
50 for rats
c. 2000, mice
c. 700, guinea pigs
c. 250, cats >500 mg/ kg. Percutaneous:Acute percutaneous LD
50 for rats >20 000 mg/kg. Not irritating to skin and eyes (rabbits). Inhalation: LC
50 (4 h) for rats >0.65 mg/l air (dust). Phytotoxicity:Phytotoxic to many crops, including crucifers, cucurbits, lettuce, onions, sugar beet, sunflowers, flax, strawberries, sweet potatoes, and tobacco.
Environmental Profile
Ecotoxicology:
Algae:rC
50 for
Scenedesmus subspicatus 0.021 /l.Bees:Not toxic to bees; 50 35 mg/bee.Birds:Acute oral 50 for bobwhite quail 168, mallard ducks 460-680 /kg. Dietary 50 (5 d) for bobwhite quail and mallard ducks >4000 / diet.Daphnia:50 (48 h) 4.5-35 /l.Fish:50 (96 h) for bluegill sunfish 80, rainbow trout 76, goldfish >10, catfish >10 .Worms:50 for
Eisenia foetida 331.8 / dry soil.
Environmental fate:
Animals:In mammals, following oral administration, 98% elimination occurs within 96 hours, about equally in the urine and the faeces.Soil:Metribuzin is rapidly degraded in soil; microbial breakdown is the major mechanism of loss. Degradation involves deamination, followed by further degradation to water-soluble conjugates. Photodecomposition on soil surfaces and in aqueous solution is an imPlant:In plants, metribuzin undergoes oxidative deamination and further degradation to water-soluble conjugates.
Transport Information
Signal Word:CAUTION; Hazard Class:III(Slightly hazardous)
Kunshan Sinovid International Trade Co., Ltd., established in Mar, 2015, head office local in the economics center of China----Shanghai(Shanghai Sinovid International Trade Co., Ltd. ), base on factory support who named Hanzhou Panfeng Agri & Tech Co., Ltd. We are professional dealing in agrochemicals such as herbicides, fungicides, insecticides and plant growth regular, and offer agricultural science and technologies service to customers. We occur "service in warmly, responsibility in heart", to offer one-stop service since raw material purchase, package design, production period, to quality control, stock and logistic, after-service.
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