89837-89-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89837-89-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,8,3 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 89837-89:
(7*8)+(6*9)+(5*8)+(4*3)+(3*7)+(2*8)+(1*9)=208
208 % 10 = 8
So 89837-89-8 is a valid CAS Registry Number.