20873-16-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20873-16-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,8,7 and 3 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 20873-16:
(7*2)+(6*0)+(5*8)+(4*7)+(3*3)+(2*1)+(1*6)=99
99 % 10 = 9
So 20873-16-9 is a valid CAS Registry Number.
20873-16-9Relevant academic research and scientific papers
Some Reactions of 2-Bromomethyl-3-phenylquinazolin-4(3H)-one
Ismail, M. Fekry,Sayed, Fikria S.
, p. 461 - 462 (2007/10/02)
2-Bromomethyl-3-phenylquinazolin-4(3H)-one (1) reacts with methyl-, ethyl-magnesium iodides and p-tolylmagnesium bromide to give 1,2-bis(4-oxo-3-phenyl-3H-2-quinazolinyl-ethane (2) in each case, while with p-methoxyphenylmagnesium bromide it gives 1,2-bis
