13990-73-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13990-73-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,9,9 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 13990-73:
(7*1)+(6*3)+(5*9)+(4*9)+(3*0)+(2*7)+(1*3)=123
123 % 10 = 3
So 13990-73-3 is a valid CAS Registry Number.