103898-03-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103898-03-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,8,9 and 8 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 103898-03:
(8*1)+(7*0)+(6*3)+(5*8)+(4*9)+(3*8)+(2*0)+(1*3)=129
129 % 10 = 9
So 103898-03-9 is a valid CAS Registry Number.