42903-24-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42903-24-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,9,0 and 3 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 42903-24:
(7*4)+(6*2)+(5*9)+(4*0)+(3*3)+(2*2)+(1*4)=102
102 % 10 = 2
So 42903-24-2 is a valid CAS Registry Number.