304453-90-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 304453-90-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,4,4,5 and 3 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 304453-90:
(8*3)+(7*0)+(6*4)+(5*4)+(4*5)+(3*3)+(2*9)+(1*0)=115
115 % 10 = 5
So 304453-90-5 is a valid CAS Registry Number.