457-63-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 457-63-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,5 and 7 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 457-63:
(5*4)+(4*5)+(3*7)+(2*6)+(1*3)=76
76 % 10 = 6
So 457-63-6 is a valid CAS Registry Number.