74578-70-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74578-70-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,5,7 and 8 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 74578-70:
(7*7)+(6*4)+(5*5)+(4*7)+(3*8)+(2*7)+(1*0)=164
164 % 10 = 4
So 74578-70-4 is a valid CAS Registry Number.