161697-02-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161697-02-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,6,9 and 7 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 161697-02:
(8*1)+(7*6)+(6*1)+(5*6)+(4*9)+(3*7)+(2*0)+(1*2)=145
145 % 10 = 5
So 161697-02-5 is a valid CAS Registry Number.