2989-08-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2989-08-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,9,8 and 9 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 2989-08:
(6*2)+(5*9)+(4*8)+(3*9)+(2*0)+(1*8)=124
124 % 10 = 4
So 2989-08-4 is a valid CAS Registry Number.