304856-56-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 304856-56-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,4,8,5 and 6 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 304856-56:
(8*3)+(7*0)+(6*4)+(5*8)+(4*5)+(3*6)+(2*5)+(1*6)=142
142 % 10 = 2
So 304856-56-2 is a valid CAS Registry Number.