105189-09-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 105189-09-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,1,8 and 9 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 105189-09:
(8*1)+(7*0)+(6*5)+(5*1)+(4*8)+(3*9)+(2*0)+(1*9)=111
111 % 10 = 1
So 105189-09-1 is a valid CAS Registry Number.