304676-13-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 304676-13-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,4,6,7 and 6 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 304676-13:
(8*3)+(7*0)+(6*4)+(5*6)+(4*7)+(3*6)+(2*1)+(1*3)=129
129 % 10 = 9
So 304676-13-9 is a valid CAS Registry Number.