919-97-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 919-97-1 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, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 919-97:
(5*9)+(4*1)+(3*9)+(2*9)+(1*7)=101
101 % 10 = 1
So 919-97-1 is a valid CAS Registry Number.