89203-43-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89203-43-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,2,0 and 3 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 89203-43:
(7*8)+(6*9)+(5*2)+(4*0)+(3*3)+(2*4)+(1*3)=140
140 % 10 = 0
So 89203-43-0 is a valid CAS Registry Number.