308240-20-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 308240-20-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,8,2,4 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 308240-20:
(8*3)+(7*0)+(6*8)+(5*2)+(4*4)+(3*0)+(2*2)+(1*0)=102
102 % 10 = 2
So 308240-20-2 is a valid CAS Registry Number.