74428-07-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74428-07-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,4,2 and 8 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 74428-07:
(7*7)+(6*4)+(5*4)+(4*2)+(3*8)+(2*0)+(1*7)=132
132 % 10 = 2
So 74428-07-2 is a valid CAS Registry Number.