451-09-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 451-09-2 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 1 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 451-09:
(5*4)+(4*5)+(3*1)+(2*0)+(1*9)=52
52 % 10 = 2
So 451-09-2 is a valid CAS Registry Number.