489457-55-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 489457-55-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,8,9,4,5 and 7 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 489457-55:
(8*4)+(7*8)+(6*9)+(5*4)+(4*5)+(3*7)+(2*5)+(1*5)=218
218 % 10 = 8
So 489457-55-8 is a valid CAS Registry Number.