13271-45-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13271-45-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,2,7 and 1 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 13271-45:
(7*1)+(6*3)+(5*2)+(4*7)+(3*1)+(2*4)+(1*5)=79
79 % 10 = 9
So 13271-45-9 is a valid CAS Registry Number.