999-04-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 999-04-2 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 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 999-04:
(5*9)+(4*9)+(3*9)+(2*0)+(1*4)=112
112 % 10 = 2
So 999-04-2 is a valid CAS Registry Number.