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1393726-74-3

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1393726-74-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1393726-74-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,9,3,7,2 and 6 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1393726-74:
(9*1)+(8*3)+(7*9)+(6*3)+(5*7)+(4*2)+(3*6)+(2*7)+(1*4)=193
193 % 10 = 3
So 1393726-74-3 is a valid CAS Registry Number.

1393726-74-3Downstream Products

1393726-74-3Relevant articles and documents

Synthesis of gem-difluorinated 1,6-naphthyridine-5,7-diones

Piron, Karel,Kenis, Sara,Verniest, Guido,Surmont, Riccardo,Thuring, Jan Willem,Ten Holte, Peter,Deroose, Frederik,De Kimpe, Norbert

, p. 6941 - 6947 (2012/08/29)

A synthetic route toward new 8,8-difluoro-1,6-naphthyridine-5,7-diones, which are of interest as new building blocks in pharmaceutical chemistry, is described. The key steps include a copper-mediated cross-coupling of ethyl bromodifluoroacetate and 2-bromo-3-cyanopyridine, followed by hydrolysis of the nitrile function and subsequent cyclization.

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