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19053-49-7

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19053-49-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19053-49-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,0,5 and 3 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 19053-49:
(7*1)+(6*9)+(5*0)+(4*5)+(3*3)+(2*4)+(1*9)=107
107 % 10 = 7
So 19053-49-7 is a valid CAS Registry Number.

19053-49-7Relevant articles and documents

Silver(II) oxide-mediated synthesis of 2,4-diarylquinazolines

Cheung, Wing,Patch, Raymond J.,Player, Mark R.

supporting information, p. 2368 - 2371 (2018/05/25)

A single-pot procedure for the synthesis of 2,4-diarylquinazolines is described which involves a silver oxide-mediated C–H activation/C–N bond formation process. The generality of this method with respect to substituent effects is presented along with studies leading to process optimization. Mechanistic investigations provide support for the involvement of radical intermediates in the reaction process.

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