455-12-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 455-12-9 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 5 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 455-12:
(5*4)+(4*5)+(3*5)+(2*1)+(1*2)=59
59 % 10 = 9
So 455-12-9 is a valid CAS Registry Number.