109729-03-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109729-03-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,7,2 and 9 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 109729-03:
(8*1)+(7*0)+(6*9)+(5*7)+(4*2)+(3*9)+(2*0)+(1*3)=135
135 % 10 = 5
So 109729-03-5 is a valid CAS Registry Number.