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947408-91-5

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947408-91-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 947408-91-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,7,4,0 and 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 947408-91:
(8*9)+(7*4)+(6*7)+(5*4)+(4*0)+(3*8)+(2*9)+(1*1)=205
205 % 10 = 5
So 947408-91-5 is a valid CAS Registry Number.

947408-91-5Relevant articles and documents

Highly efficient and scalable process for demethylation of 6-(2,4-dimethoxybenzoyl)chromen-2-one and other aryl methyl ethers

Srivastava, Amit,Yang, Jason,Zhao, Baoshu,Jiang, Yong,Blackmon, Wade,Kraemer, Bernd

, p. 1765 - 1771 (2010)

Demethylation of 6-(2,4-dimethoxybenzoyl)chromen-2-one and some other aryl methyl ethers was achieved with pyridinium bromide as demethylating agent and sulfolane as solvent. Compared with other demethylation methods, this combination offers advantages of clean conversion, excellent yields, easy operation and workup, and manageable reaction temperatures. This process could be particularly useful for large-scale production because it avoids use of corrosive or moisture-sensitive reagents. Copyright

PROCESS FOR PRODUCTION OF 3-[5-[4-(CYCLOPENTYLOXY)-2-HYDROXYBENZOYL]-2-[(3-HYDROXY-1,2-BEZISOXAZOL-6-YL)METHOXY]PHENYL]PROPIONATE ESTER AND INTERMEDIATE FOR THE PROCESS

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Page/Page column 23, (2008/12/08)

A preparation method using as an intermediate 6-(halomethyl)-1,2-benzisoxazol-3(2H)-one derivative represented by general formula wherein R5 is a methyl group that is substituted with one or more optionally substituted phenyl groups, or an opti

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