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Urea, N'-(3,4-dichlorophenyl)-N-methyl-N-(1,2,2,2-tetrachloroethyl)-, also known as DCPMU, is a chemical compound with the molecular formula C9H7Cl5N2O. It is a derivative of urea, featuring a 3,4-dichlorophenyl group and a 1,2,2,2-tetrachloroethyl group attached to the nitrogen atoms. Urea, N'-(3,4-dichlorophenyl)-N-methyl-N-(1,2,2,2-tetrachloroethyl)- is primarily used as a herbicide, specifically for controlling broadleaf and grassy weeds in various crops. DCPMU works by inhibiting the enzyme acetohydroxyacid synthase, which is essential for plant growth. It is known for its selective action and low toxicity to mammals, making it a popular choice in agricultural applications. However, due to its potential environmental impact and persistence in soil, its use is regulated in many countries.

39803-91-3

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39803-91-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 39803-91-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,8,0 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 39803-91:
(7*3)+(6*9)+(5*8)+(4*0)+(3*3)+(2*9)+(1*1)=143
143 % 10 = 3
So 39803-91-3 is a valid CAS Registry Number.

39803-91-3Relevant academic research and scientific papers

N-alkyl or alkoxy-N'-substituted hydrocarbyl urea

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, (2008/06/13)

Compounds of the formula STR1 wherein R is aliphatic hydrocarbyl, alicyclic hydrocarbyl or aryl suitably substituted, if desired, or a heterocyclic group, R1 is hydrogen or alkyl, R2 is alkyl or alkoxy, R3 is STR2 wherein

Herbicidal substituted-haloethyl urea

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, (2008/06/13)

Herbicidal compounds of the formula STR1 wherein R is alkyl, cycloalkyl or phenyl substituted with up to 2 fluorine, chlorine, bromine, trifluoromethyl, nitro, lower alkoxy, lower alkyl or phenoxy, phenylthio or phenylsulfonyl substituted with up to 2 flu

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