1103500-71-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1103500-71-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,0,3,5,0 and 0 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1103500-71:
(9*1)+(8*1)+(7*0)+(6*3)+(5*5)+(4*0)+(3*0)+(2*7)+(1*1)=75
75 % 10 = 5
So 1103500-71-5 is a valid CAS Registry Number.