39105-80-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39105-80-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,1,0 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 39105-80:
(7*3)+(6*9)+(5*1)+(4*0)+(3*5)+(2*8)+(1*0)=111
111 % 10 = 1
So 39105-80-1 is a valid CAS Registry Number.