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1039020-81-9

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1039020-81-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1039020-81-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,3,9,0,2 and 0 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1039020-81:
(9*1)+(8*0)+(7*3)+(6*9)+(5*0)+(4*2)+(3*0)+(2*8)+(1*1)=109
109 % 10 = 9
So 1039020-81-9 is a valid CAS Registry Number.

1039020-81-9Relevant articles and documents

A novel sulfonyl ureas

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Paragraph 0064-0066, (2016/10/09)

The invention relates to the technical field of organic compounds, and provides a sulfonylurea compound with the following general formula I (refer to the Specification). In the formula, R1 is at least one of hydroxyl, halogen atom, hydroxyl, amino, nitro, amide group and carboxyl, amino, dialkyl amino alkyl and alkane hydroxyl; R2 is any one of hydrogen, alkyl carbonyl oxygen and halogen atom; R3 and R4 are same or different alkoxy or halogen atoms; and X1, X2 and X3 are same or different N or CH. The sulfonylurea compound has the characteristics of higher weeding activity, good selectivity and low residue.

HYDRAZONE DERIVATIVE

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Page/Page column 58, (2009/10/06)

A hydrazone derivative of formula [I]: wherein Ring A is aryl or heteroaryl, Ring T is heteroaryl or heterocycle, R1 and R2 are independently hydrogen atom, halogen atom, cycloalkylsulfonyl, etc., R3 and R4 comb

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