40797-97-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40797-97-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,7,9 and 7 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 40797-97:
(7*4)+(6*0)+(5*7)+(4*9)+(3*7)+(2*9)+(1*7)=145
145 % 10 = 5
So 40797-97-5 is a valid CAS Registry Number.