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1520077-97-7

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1520077-97-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1520077-97-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,2,0,0,7 and 7 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1520077-97:
(9*1)+(8*5)+(7*2)+(6*0)+(5*0)+(4*7)+(3*7)+(2*9)+(1*7)=137
137 % 10 = 7
So 1520077-97-7 is a valid CAS Registry Number.

1520077-97-7Relevant articles and documents

One-pot synthesis of quinazolinones from anthranilamides and aldehydes via p -toluenesulfonic acid catalyzed cyclocondensation and phenyliodine diacetate mediated oxidative dehydrogenation

Cheng, Ran,Guo, Tianjian,Zhang-Negrerie, Daisy,Du, Yunfei,Zhao, Kang

, p. 2998 - 3006 (2013/11/06)

A variety of 4(3H)-quinazolinones are synthesized conveniently in one pot from 2-aminobenzamides and aldehydes, via cyclization catalyzed by p-toluenesulfonic acid followed by oxidative dehydrogenation mediated by the hypervalent iodine compound phenyliodine diacetate [PhI(OAc)2, PIDA]. Highlights of the described method include the first synthesis of quinazolinones bearing an N-alkoxy substituent, a new application of phenyliodine diacetate as an efficient dehydrogenative oxidant, and mild reaction conditions. Georg Thieme Verlag Stuttgart, New York.

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