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1371569-93-5

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1371569-93-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1371569-93-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,7,1,5,6 and 9 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1371569-93:
(9*1)+(8*3)+(7*7)+(6*1)+(5*5)+(4*6)+(3*9)+(2*9)+(1*3)=185
185 % 10 = 5
So 1371569-93-5 is a valid CAS Registry Number.

1371569-93-5Relevant articles and documents

New approach to flavonols via base-mediated cyclization: Total synthesis of 3,5,6,7-tetramethoxyflavone

Kraus, George A.,Gupta, Vinayak,Kempema, Aaron

experimental part, p. 385 - 388 (2012/03/10)

A new methodology for the synthesis of flavonols is described. The key step is a base-mediated cyclization-isomerization-elimination reaction which results in the formation of flavonols. Using this strategy, three flavonols are synthesized and characteriz

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