304506-72-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 304506-72-7 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 6 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 304506-72:
(8*3)+(7*0)+(6*4)+(5*5)+(4*0)+(3*6)+(2*7)+(1*2)=107
107 % 10 = 7
So 304506-72-7 is a valid CAS Registry Number.