168919-05-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 168919-05-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,8,9,1 and 9 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 168919-05:
(8*1)+(7*6)+(6*8)+(5*9)+(4*1)+(3*9)+(2*0)+(1*5)=179
179 % 10 = 9
So 168919-05-9 is a valid CAS Registry Number.