4489-97-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4489-97-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,8 and 9 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4489-97:
(6*4)+(5*4)+(4*8)+(3*9)+(2*9)+(1*7)=128
128 % 10 = 8
So 4489-97-8 is a valid CAS Registry Number.