69557-79-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69557-79-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,5,5 and 7 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 69557-79:
(7*6)+(6*9)+(5*5)+(4*5)+(3*7)+(2*7)+(1*9)=185
185 % 10 = 5
So 69557-79-5 is a valid CAS Registry Number.