13165-71-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13165-71-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,1,6 and 5 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 13165-71:
(7*1)+(6*3)+(5*1)+(4*6)+(3*5)+(2*7)+(1*1)=84
84 % 10 = 4
So 13165-71-4 is a valid CAS Registry Number.