304889-04-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 304889-04-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,4,8,8 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 304889-04:
(8*3)+(7*0)+(6*4)+(5*8)+(4*8)+(3*9)+(2*0)+(1*4)=151
151 % 10 = 1
So 304889-04-1 is a valid CAS Registry Number.