439120-89-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 439120-89-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,9,1,2 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 439120-89:
(8*4)+(7*3)+(6*9)+(5*1)+(4*2)+(3*0)+(2*8)+(1*9)=145
145 % 10 = 5
So 439120-89-5 is a valid CAS Registry Number.