89789-54-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89789-54-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,7,8 and 9 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 89789-54:
(7*8)+(6*9)+(5*7)+(4*8)+(3*9)+(2*5)+(1*4)=218
218 % 10 = 8
So 89789-54-8 is a valid CAS Registry Number.