412020-13-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 412020-13-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,1,2,0,2 and 0 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 412020-13:
(8*4)+(7*1)+(6*2)+(5*0)+(4*2)+(3*0)+(2*1)+(1*3)=64
64 % 10 = 4
So 412020-13-4 is a valid CAS Registry Number.