161696-88-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161696-88-4 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 6 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 161696-88:
(8*1)+(7*6)+(6*1)+(5*6)+(4*9)+(3*6)+(2*8)+(1*8)=164
164 % 10 = 4
So 161696-88-4 is a valid CAS Registry Number.