176693-77-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 176693-77-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,6,6,9 and 3 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 176693-77:
(8*1)+(7*7)+(6*6)+(5*6)+(4*9)+(3*3)+(2*7)+(1*7)=189
189 % 10 = 9
So 176693-77-9 is a valid CAS Registry Number.
176693-77-9Relevant academic research and scientific papers
Benzosuberane-5,8-diones
McKay, Roslyn,Proctor, George R.
, p. 98 - 99 (2007/10/03)
Two 5-aryl-4-oxopentanoic acids were made from appropriate valine oxazolones, protected as the 4-methoxyimino derivatives and cyclised to tetrahydrobenzo[7]annulene-5,8-diones (1).
