300820-69-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 300820-69-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,0,8,2 and 0 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 300820-69:
(8*3)+(7*0)+(6*0)+(5*8)+(4*2)+(3*0)+(2*6)+(1*9)=93
93 % 10 = 3
So 300820-69-3 is a valid CAS Registry Number.