398-25-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 398-25-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 3,9 and 8 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 398-25:
(5*3)+(4*9)+(3*8)+(2*2)+(1*5)=84
84 % 10 = 4
So 398-25-4 is a valid CAS Registry Number.