103409-30-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103409-30-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,4,0 and 9 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 103409-30:
(8*1)+(7*0)+(6*3)+(5*4)+(4*0)+(3*9)+(2*3)+(1*0)=79
79 % 10 = 9
So 103409-30-9 is a valid CAS Registry Number.