304479-42-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 304479-42-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,4,4,7 and 9 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 304479-42:
(8*3)+(7*0)+(6*4)+(5*4)+(4*7)+(3*9)+(2*4)+(1*2)=133
133 % 10 = 3
So 304479-42-3 is a valid CAS Registry Number.