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69905-99-3

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69905-99-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69905-99-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,9,0 and 5 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 69905-99:
(7*6)+(6*9)+(5*9)+(4*0)+(3*5)+(2*9)+(1*9)=183
183 % 10 = 3
So 69905-99-3 is a valid CAS Registry Number.

69905-99-3Relevant articles and documents

Visible-light-mediated reaction: Synthesis of quinazolinones from 1,2-dihydroquinazoline 3-oxides

Wu, Chun-Ku,Yang, Ding-Yah

, p. 65988 - 65994 (2016/07/26)

1-Methyl-2-phenylquinazolin-4(1H)-ones were synthesized in good yield by exposing 1,4-dimethyl-2-phenyl-1,2-dihydroquinazoline 3-oxides or 1-methyl-2-phenyl-1,2-dihydroquinazoline 3-oxides to visible light in acetonitrile in the absence of any external ph

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