299440-80-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 299440-80-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,9,4,4 and 0 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 299440-80:
(8*2)+(7*9)+(6*9)+(5*4)+(4*4)+(3*0)+(2*8)+(1*0)=185
185 % 10 = 5
So 299440-80-5 is a valid CAS Registry Number.