565-97-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 565-97-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,6 and 5 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 565-97:
(5*5)+(4*6)+(3*5)+(2*9)+(1*7)=89
89 % 10 = 9
So 565-97-9 is a valid CAS Registry Number.