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474452-37-4

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474452-37-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 474452-37-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,7,4,4,5 and 2 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 474452-37:
(8*4)+(7*7)+(6*4)+(5*4)+(4*5)+(3*2)+(2*3)+(1*7)=164
164 % 10 = 4
So 474452-37-4 is a valid CAS Registry Number.

474452-37-4Relevant articles and documents

Conjugate additions of o-iodoanilines and methyl anthranilates to acetylenic sulfones. A new route to quinolones including first syntheses of two alkaloids from the medicinal herb Ruta chalepensis

Back, Thomas G.,Parvez, Masood,Wulff, Jeremy E.

, p. 2223 - 2233 (2007/10/03)

A novel synthesis of 2-substituted 4-quinolones was developed on the basis of the conjugate additions of appropriately ortho-substituted anilines to acetylenic sulfones followed by intramolecular acylation of the corresponding sulfone-stabilized anions. C

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