100103-11-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100103-11-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,1,0 and 3 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 100103-11:
(8*1)+(7*0)+(6*0)+(5*1)+(4*0)+(3*3)+(2*1)+(1*1)=25
25 % 10 = 5
So 100103-11-5 is a valid CAS Registry Number.