40104-09-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40104-09-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,1,0 and 4 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 40104-09:
(7*4)+(6*0)+(5*1)+(4*0)+(3*4)+(2*0)+(1*9)=54
54 % 10 = 4
So 40104-09-4 is a valid CAS Registry Number.