80397-17-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80397-17-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,3,9 and 7 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 80397-17:
(7*8)+(6*0)+(5*3)+(4*9)+(3*7)+(2*1)+(1*7)=137
137 % 10 = 7
So 80397-17-7 is a valid CAS Registry Number.