300406-81-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 300406-81-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,0,4,0 and 6 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 300406-81:
(8*3)+(7*0)+(6*0)+(5*4)+(4*0)+(3*6)+(2*8)+(1*1)=79
79 % 10 = 9
So 300406-81-9 is a valid CAS Registry Number.