29117-45-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 29117-45-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,9,1,1 and 7 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 29117-45:
(7*2)+(6*9)+(5*1)+(4*1)+(3*7)+(2*4)+(1*5)=111
111 % 10 = 1
So 29117-45-1 is a valid CAS Registry Number.