109438-28-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109438-28-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,4,3 and 8 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 109438-28:
(8*1)+(7*0)+(6*9)+(5*4)+(4*3)+(3*8)+(2*2)+(1*8)=130
130 % 10 = 0
So 109438-28-0 is a valid CAS Registry Number.