161117-09-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161117-09-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,1,1 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 161117-09:
(8*1)+(7*6)+(6*1)+(5*1)+(4*1)+(3*7)+(2*0)+(1*9)=95
95 % 10 = 5
So 161117-09-5 is a valid CAS Registry Number.