304663-26-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 304663-26-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,4,6,6 and 3 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 304663-26:
(8*3)+(7*0)+(6*4)+(5*6)+(4*6)+(3*3)+(2*2)+(1*6)=121
121 % 10 = 1
So 304663-26-1 is a valid CAS Registry Number.