65697-05-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 65697-05-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,6,9 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 65697-05:
(7*6)+(6*5)+(5*6)+(4*9)+(3*7)+(2*0)+(1*5)=164
164 % 10 = 4
So 65697-05-4 is a valid CAS Registry Number.