82309-44-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 82309-44-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,3,0 and 9 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 82309-44:
(7*8)+(6*2)+(5*3)+(4*0)+(3*9)+(2*4)+(1*4)=122
122 % 10 = 2
So 82309-44-2 is a valid CAS Registry Number.