919-13-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 919-13-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,1 and 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 919-13:
(5*9)+(4*1)+(3*9)+(2*1)+(1*3)=81
81 % 10 = 1
So 919-13-1 is a valid CAS Registry Number.