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927653-64-3

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927653-64-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 927653-64-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,2,7,6,5 and 3 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 927653-64:
(8*9)+(7*2)+(6*7)+(5*6)+(4*5)+(3*3)+(2*6)+(1*4)=203
203 % 10 = 3
So 927653-64-3 is a valid CAS Registry Number.

927653-64-3Relevant articles and documents

Two convenient regioselective syntheses of 1-N-alkyl-3-aryl-4-[pyrimidin-4-yl]-pyrazoles

Ralph, Jeffrey M.,Faitg, Thomas H.,Silva, Domingos J.,Feng, Yanhong,Blackledge, Charles W.,Adams, Jerry L.

scheme or table, p. 1377 - 1380 (2009/06/08)

Two regioselective synthetic routes for 1-N-alkyl-3-aryl-4-[pyrimidin-4-yl]-pyrazoles of generic formula 1 were developed. These highly efficient and scalable routes circumvent the generally observed poor regioselectivity for the pyrazole alkylation.

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