103505-17-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103505-17-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,5,0 and 5 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 103505-17:
(8*1)+(7*0)+(6*3)+(5*5)+(4*0)+(3*5)+(2*1)+(1*7)=75
75 % 10 = 5
So 103505-17-5 is a valid CAS Registry Number.