40428-75-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40428-75-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,4,2 and 8 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 40428-75:
(7*4)+(6*0)+(5*4)+(4*2)+(3*8)+(2*7)+(1*5)=99
99 % 10 = 9
So 40428-75-9 is a valid CAS Registry Number.