998-69-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 998-69-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,9 and 8 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 998-69:
(5*9)+(4*9)+(3*8)+(2*6)+(1*9)=126
126 % 10 = 6
So 998-69-6 is a valid CAS Registry Number.