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51235-04-2

51235-04-2 Structure

51235-04-2 Structure
IdentificationMore
[Name]

Hexazinone
[CAS]

51235-04-2
[Synonyms]

3-CYCLOHEXYL-6-(DIMETHYLAMINO)-1-METHYL-1,3,5-TRIAZINE-2,4-(1H,3H)-DIONE
3-CYCLOHEXYL-6-DIMETHYLAMINO-1-METHYL-1,3,5-TRIAZINE-2,4-DIONE
HEXAZINONE
VELPAR
3,5-Triazine-2,4(1H,3H)-dione,3-cyclohexyl-6-(dimethylamino)-1-methyl-1
3-Cyclohexy-6-(dimethylamino)-1-methyl-1,3,5-triazine-2,4(1H,3H)-dione
3-Cyclohexyl-1-methyl-6-(dimethylamino)-s-trazine-2,4(1H,3H)-dione
3-Cyclohexyl-6-(dimethylamino)-1-methyl-s-triazine-2,4(1H,3H)-dione
3-cyclohexyl-6-(dimethylamino)-1-methyl-s-triazine-2,4(ih,3h)-dione
3-cyclohexyl-6-dimethylamino-1-methyl-1,2,3,4-tetrahydro-1,3,5-triazine-2,4-dione
3h)-dione,3-cyclohexyl-6-(dimethylamino)-1-methyl-s-triazine-4(1h
5-triazine-2,4(1h,3h)-dione,3-cyclohexyl-6-(dimethylamino)-1-methyl-3
brushkiller
DPX 3674
dpx3674
gridball
Hexazinoe
Hexazinon
sha107201
s-Triazine-2,4(1H,3H)-dione, 3-cyclohexyl-6-(dimethylamino)-1-methyl-
[EINECS(EC#)]

257-074-4
[Molecular Formula]

C12H20N4O2
[MDL Number]

MFCD00055526
[Molecular Weight]

252.31
[MOL File]

51235-04-2.mol
Chemical PropertiesBack Directory
[storage temp. ]

APPROX 4°C
[CAS DataBase Reference]

51235-04-2(CAS DataBase Reference)
[NIST Chemistry Reference]

1,3,5-Triazine-2,4(1h,3h)-dione, 3-cyclohexyl-6-(dimethylamino)-1-methyl-(51235-04-2)
[EPA Substance Registry System]

51235-04-2(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

Xn,N
[Risk Statements ]

R22:Harmful if swallowed.
R36:Irritating to the eyes.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
[Safety Statements ]

S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
[RIDADR ]

UN3077 9/PG 3
[RTECS ]

XY7850000
[HS Code ]

29336990
[Hazardous Substances Data]

51235-04-2(Hazardous Substances Data)
Raw materials And Preparation ProductsBack Directory
【Raw materials】

Ethanol-->Toluene-->Chloroform-->Dimethylamine-->Ethyl chloroformate-->Calcium cyanamide-->Amitraz-->Isocyanatocyclohexane-->ethyl N-cyano-N-methylaminoformate-->2-METHYL-4-HYDROXY-2H-1,2-BENZOTHIAZINE-3-CARBOXYLIC METHYL ESTER-1,1-DIOXIDE
Hazard InformationBack Directory
[General Description]

White crystalline solid. Corrosive eye irritant. Used as an herbicide.
[Reactivity Profile]

A triazine.
[Air & Water Reactions]

Water soluble. Rapidly decomposed in solution by strong acids and bases.
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

Hexazinone(51235-04-2).msds
Questions And AnswerBack Directory
[Chemical Properties]

The pure product is white crystalline solid. m.p.115~117℃. Vapour pressure is 2.7×10-3Pa (25℃)、8.5×10-3Pa (86℃). Relative density is 1.25. The solubility at 25 ℃: 3880g/kg in chloroform, 2650g/kg in methanol, 836g/kg in dimethylformamide,790g/kg in acetone, 940g/kg in benzene, 386g/kg in toluene, 3g/kg in hexane and 33g/kg in water. In the water solution with pH value of 5~9, it is stable at normal temperature and will be decomposed by microbes in the soil.
[Uses]

Post bud contact killing herbicide and the inhibitor of photosynthesis in plants. Its weed killing spectrum and killing shrub spectrum are wide, and its toxicity is strong and effective. It is used for tending young forests of evergreen coniferous forests, such as Pinus koraiensis, Pinus sylvestris, Picea spruce, Pinus massoniana and so on. Before the afforestation, it is applied to weeding and extinguishing irrigation, maintaining and opening forest fire prevention and forest soil improvement etc...It can also be used for weeding and irrigation on both sides of the oil depot, airport and road. It can prevent green bristlegrass, filipendula palmate, angelica dahurica,sedge, herba elsholtziae, reed, deyeuxia angustifolia, fern, clematis, veronica spuria, cephalanoplos segetum, wild oats, quinoa, millet, etc.. The woody plants it can can control include yellow lonicera japonica, pearl, hazel wood, spiraea salicifolia, acanthopanax senticosus, acanthopanax, winged elm, aspen, birch, quercus mongolica, linden, oak, linden, ashtree, phellodendron amurense rupr, juglans mandshurica etc.. It can control annual weed and biennial weed. A dose of 2~5kg/hm2 control weeds for a short term. Most perennial weeds can be prevented by the dose of 6~12kg/hm2. Nonionic surfactants can be added to this product.
[Mechanism of action]

It mainly inhibits the photosynthesis of plants and causes the disordered generation of plants and causes death. Both plant root and leaf surface can absorb the cyclohexanone, which is transported mainly through the xylem. It has great mobility in the soil and can be decomposed by soil microbes after entering the soil. It has no harm to the root of the pine tree. 7 days after the weeds have been treated, the leaves will have necrosis until the whole leaf has withered. The whole process including the upper part above ground (about 2 weeks) and the rotting of the root lasts for 1 month. It will last for 1 month from the appearance of necrosison the new leaves to rotting roots of the shrubs lasts for about 2 months. The first defoliation of non - objective arbor takes place 20~30 days after the injury. In the future, the new born leaves will be molted again, repeating 3~5 times in a row. From the spot to the formation of shrub leaf rot lasted for about 2 months. The upper part of the ground dies in 60~120 days. The roots rot in the fall of second.
[Toxicity]

The drug is of toxicity when acute oral LD50 is 1690mg/kg in rats, acute percutaneous is LD50>5278mg/kg in rabbits, acute transdermal is LD50>2000mg/kg in rats. It has a stimulating effect on the eyes of rabbits. The accumulative coefficient K value is >5, which belongs to the mild accumulative pesticide.There is no teratogenic, carcinogenic and mutagenic effects on animals within the range of experiments. No abnormality is found in the three generation reproduction test and neurotoxicity test. The non-cation dose for two years of feeding test: 200mg/kg for rats,LC50388mg/L for rainbow trout, LD50>5000mg/kg for quail, LD50>10000mg/kg for wild duck and, LC5060μg for per bee.
[Preparation method]

Well-known Reagent Company Product InformationBack Directory
[Sigma Aldrich]

51235-04-2(sigmaaldrich)
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