457921-76-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 457921-76-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,5,7,9,2 and 1 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 457921-76:
(8*4)+(7*5)+(6*7)+(5*9)+(4*2)+(3*1)+(2*7)+(1*6)=185
185 % 10 = 5
So 457921-76-5 is a valid CAS Registry Number.