13994-72-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13994-72-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,9,9 and 4 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 13994-72:
(7*1)+(6*3)+(5*9)+(4*9)+(3*4)+(2*7)+(1*2)=134
134 % 10 = 4
So 13994-72-4 is a valid CAS Registry Number.