Milneb
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Milneb
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CAS No:
3773-49-7
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Formula:
C12H22N4S4
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Chemical Name:
Milneb
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Synonyms:
2H-1,3,5-Thiadiazine-2-thione,3,3′-(1,2-ethanediyl)bis[3,4,5,6-tetrahydro-4,6-dimethyl-;2H-1,3,5-Thiadiazine-2-thione,3,3′-ethylenebis[tetrahydro-4,6-dimethyl-;2H-1,3,5-Thiadiazine-2-thione,3,3′-(1,2-ethanediyl)bis[tetrahydro-4,6-dimethyl-;3,3′-(1,2-Ethanediyl)bis[3,4,5,6-tetrahydro-4,6-dimethyl-2H-1,3,5-thiadiazine-2-thione];D 682;Du Pont 328;3,3′-Ethylenebis(tetrahydro-4,6-dimethyl-2H-1,3,5-thiadiazine-2-thione);D 328;Editone;3,3-Ethylenebis(4,6-dimethyltetrahydro-1,3,5-thiadiazine-2-thione);Edithon;Editon;Sanipa;Milneb;HOE 2852;Thiadiazin;Thiadiazin (pesticide);11116-42-0;68165-30-0
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CAS No:
Characteristics
145
2.75040
1.35g/cm3
480.7ºC at 760 mmHg
244.5ºC
1.689
Oral-rat LD50: 5000 mg/kg
Thermal decomposition of toxic nitrogen oxide and sulfur oxide gases
Safety Information
The warehouse is ventilated, low temperature and dry; stored and transported separately from food materials
Milneb Use and Manufacturing
Condensation Add 4.28kg (0.05kmol) ethylenediamine into the reaction kettle, add 11.5kg (0.057kmol) ammonium hydroxide (calculated as NH3) dropwise, control the reaction temperature at 28°C, add 8.4kg (0.105kmol) carbon disulfide dropwise within 1h , Control the dropping temperature not to exceed 35℃, and react at this temperature for 6 hours to obtain 24kg of 50% desen ammonium with a yield of 97%. Cyclization: Put 14.76kg (0.03kmol) of the dessen ammonium obtained in the previous step into the reaction kettle, adjust the reaction temperature to 28°C, react for 75min, add 24.2kg (0.165kmol) of acetaldehyde, the reaction temperature does not exceed 40°C, add After completion, heat preservation reaction for 10 minutes, centrifugal separation, boiling and drying to obtain 10.13kg of Daisen ring, content 96%, yield 92.4%.
Daisen fungicides, in addition to preventing and controlling diseases, also have the effect of stimulating plant growth. It has good prevention effect on various diseases. Such as melon downy mildew, anthracnose, potato blight, tomato leaf mildew, blight, ring rot, gray mold, apple, pear scab, bean rust, etc., compared with other organic sulfur agents, the use concentration is low , Has little impact on crops, no pollution to leaves and fruits. It is generally sprayed with 75% wettable powder 600 to 800 times.
Computed Properties
Molecular Weight:350.6
XLogP3:3.1
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:6
Rotatable Bond Count:3
Exact Mass:350.07273141
Monoisotopic Mass:350.07273141
Topological Polar Surface Area:145
Heavy Atom Count:20
Complexity:356
Undefined Atom Stereocenter Count:4
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes