5811-89-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5811-89-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,8,1 and 1 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 5811-89:
(6*5)+(5*8)+(4*1)+(3*1)+(2*8)+(1*9)=102
102 % 10 = 2
So 5811-89-2 is a valid CAS Registry Number.