74498-42-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74498-42-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,4,9 and 8 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 74498-42:
(7*7)+(6*4)+(5*4)+(4*9)+(3*8)+(2*4)+(1*2)=163
163 % 10 = 3
So 74498-42-3 is a valid CAS Registry Number.