667453-45-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 667453-45-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,7,4,5 and 3 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 667453-45:
(8*6)+(7*6)+(6*7)+(5*4)+(4*5)+(3*3)+(2*4)+(1*5)=194
194 % 10 = 4
So 667453-45-4 is a valid CAS Registry Number.