139172-03-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139172-03-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,1,7 and 2 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 139172-03:
(8*1)+(7*3)+(6*9)+(5*1)+(4*7)+(3*2)+(2*0)+(1*3)=125
125 % 10 = 5
So 139172-03-5 is a valid CAS Registry Number.