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946570-87-2

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946570-87-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 946570-87-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,6,5,7 and 0 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 946570-87:
(8*9)+(7*4)+(6*6)+(5*5)+(4*7)+(3*0)+(2*8)+(1*7)=212
212 % 10 = 2
So 946570-87-2 is a valid CAS Registry Number.

946570-87-2Relevant articles and documents

Synthesis of substituted 5-(pyrrolidin-2-yl)tetrazoles and their application in the asymmetric Biginelli reaction

Wu, Yong-Yong,Chai, Zhuo,Liu, Xin-Yuan,Zhao, Gang,Wang, Shao-Wu

experimental part, p. 904 - 911 (2009/07/19)

A series of chiral substituted 5-(pyrrolidin-2-yl)tetrazoles have been synthesized and evaluated as organocatalysts for the asymmetric Biginelli reaction. The relationship between catalytic activity and the different catalyst structures is briefly discussed. By using the optimized catalyst C10 (10 mol-%), a series of 3,4-dihydropyrimidin-2(1H)-one (DHPM) derivatives have been obtained in 63-88% yields and 68-81 % ee values within 24 h at room temperature.

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