2889-04-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2889-04-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,8,8 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 2889-04:
(6*2)+(5*8)+(4*8)+(3*9)+(2*0)+(1*4)=115
115 % 10 = 5
So 2889-04-5 is a valid CAS Registry Number.