404596-20-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 404596-20-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,4,5,9 and 6 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 404596-20:
(8*4)+(7*0)+(6*4)+(5*5)+(4*9)+(3*6)+(2*2)+(1*0)=139
139 % 10 = 9
So 404596-20-9 is a valid CAS Registry Number.