17102-83-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17102-83-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,1,0 and 2 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 17102-83:
(7*1)+(6*7)+(5*1)+(4*0)+(3*2)+(2*8)+(1*3)=79
79 % 10 = 9
So 17102-83-9 is a valid CAS Registry Number.