4457-08-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4457-08-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,5 and 7 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 4457-08:
(6*4)+(5*4)+(4*5)+(3*7)+(2*0)+(1*8)=93
93 % 10 = 3
So 4457-08-3 is a valid CAS Registry Number.