662-58-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 662-58-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,6 and 2 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 662-58:
(5*6)+(4*6)+(3*2)+(2*5)+(1*8)=78
78 % 10 = 8
So 662-58-8 is a valid CAS Registry Number.