139331-44-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139331-44-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,3,3 and 1 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 139331-44:
(8*1)+(7*3)+(6*9)+(5*3)+(4*3)+(3*1)+(2*4)+(1*4)=125
125 % 10 = 5
So 139331-44-5 is a valid CAS Registry Number.