42300-75-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42300-75-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,3,0 and 0 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 42300-75:
(7*4)+(6*2)+(5*3)+(4*0)+(3*0)+(2*7)+(1*5)=74
74 % 10 = 4
So 42300-75-4 is a valid CAS Registry Number.