109054-49-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109054-49-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,0,5 and 4 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 109054-49:
(8*1)+(7*0)+(6*9)+(5*0)+(4*5)+(3*4)+(2*4)+(1*9)=111
111 % 10 = 1
So 109054-49-1 is a valid CAS Registry Number.