304904-11-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 304904-11-8 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, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 304904-11:
(8*3)+(7*0)+(6*4)+(5*9)+(4*0)+(3*4)+(2*1)+(1*1)=108
108 % 10 = 8
So 304904-11-8 is a valid CAS Registry Number.