171966-16-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 171966-16-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,9,6 and 6 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 171966-16:
(8*1)+(7*7)+(6*1)+(5*9)+(4*6)+(3*6)+(2*1)+(1*6)=158
158 % 10 = 8
So 171966-16-8 is a valid CAS Registry Number.