489457-56-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 489457-56-9 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 7 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 489457-56:
(8*4)+(7*8)+(6*9)+(5*4)+(4*5)+(3*7)+(2*5)+(1*6)=219
219 % 10 = 9
So 489457-56-9 is a valid CAS Registry Number.