43209-93-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 43209-93-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,3,2,0 and 9 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 43209-93:
(7*4)+(6*3)+(5*2)+(4*0)+(3*9)+(2*9)+(1*3)=104
104 % 10 = 4
So 43209-93-4 is a valid CAS Registry Number.