17173-20-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17173-20-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,1,7 and 3 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 17173-20:
(7*1)+(6*7)+(5*1)+(4*7)+(3*3)+(2*2)+(1*0)=95
95 % 10 = 5
So 17173-20-5 is a valid CAS Registry Number.