171972-95-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 171972-95-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,9,7 and 2 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 171972-95:
(8*1)+(7*7)+(6*1)+(5*9)+(4*7)+(3*2)+(2*9)+(1*5)=165
165 % 10 = 5
So 171972-95-5 is a valid CAS Registry Number.