109500-72-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109500-72-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,5,0 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 109500-72:
(8*1)+(7*0)+(6*9)+(5*5)+(4*0)+(3*0)+(2*7)+(1*2)=103
103 % 10 = 3
So 109500-72-3 is a valid CAS Registry Number.