304509-47-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 304509-47-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,4,5,0 and 9 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 304509-47:
(8*3)+(7*0)+(6*4)+(5*5)+(4*0)+(3*9)+(2*4)+(1*7)=115
115 % 10 = 5
So 304509-47-5 is a valid CAS Registry Number.