116221-81-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 116221-81-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,2,2 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 116221-81:
(8*1)+(7*1)+(6*6)+(5*2)+(4*2)+(3*1)+(2*8)+(1*1)=89
89 % 10 = 9
So 116221-81-9 is a valid CAS Registry Number.
116221-81-9Relevant articles and documents
Antifungal activity of new 1,3,4-oxadiazolo[3,2-a]-s-triazine-5,7-diones and their 5-thioxo-7-ones
Mishra, Atma R.,Singh, Shailendra,Wahab, Abdul
, p. 5465 - 5468 (2007/10/03)
N1- and N3-(4-fluorophenyl) ureas (III a-e) were cyclocondensed with ethyl chloroformate and CS2/ KOH to yield 2-aryl-6-(4-fluorophenyl)-1,3,4-oxadiazolo[3,2-a]-s-triazine-5,7-diones (IVa-e) and their 5-thioxo-7-ones (Va-e