304904-66-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 304904-66-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,4,9,0 and 4 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 304904-66:
(8*3)+(7*0)+(6*4)+(5*9)+(4*0)+(3*4)+(2*6)+(1*6)=123
123 % 10 = 3
So 304904-66-3 is a valid CAS Registry Number.