80239-44-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80239-44-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,2,3 and 9 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 80239-44:
(7*8)+(6*0)+(5*2)+(4*3)+(3*9)+(2*4)+(1*4)=117
117 % 10 = 7
So 80239-44-7 is a valid CAS Registry Number.