489454-55-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 489454-55-9 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 4 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 489454-55:
(8*4)+(7*8)+(6*9)+(5*4)+(4*5)+(3*4)+(2*5)+(1*5)=209
209 % 10 = 9
So 489454-55-9 is a valid CAS Registry Number.