26167-20-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 26167-20-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,1,6 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 26167-20:
(7*2)+(6*6)+(5*1)+(4*6)+(3*7)+(2*2)+(1*0)=104
104 % 10 = 4
So 26167-20-4 is a valid CAS Registry Number.