79566-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 79566-91-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,5,6 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 79566-91:
(7*7)+(6*9)+(5*5)+(4*6)+(3*6)+(2*9)+(1*1)=189
189 % 10 = 9
So 79566-91-9 is a valid CAS Registry Number.