289049-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 289049-72-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,9,0,4 and 9 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 289049-72:
(8*2)+(7*8)+(6*9)+(5*0)+(4*4)+(3*9)+(2*7)+(1*2)=185
185 % 10 = 5
So 289049-72-5 is a valid CAS Registry Number.