42426-03-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42426-03-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,4,2 and 6 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 42426-03:
(7*4)+(6*2)+(5*4)+(4*2)+(3*6)+(2*0)+(1*3)=89
89 % 10 = 9
So 42426-03-9 is a valid CAS Registry Number.