40401-72-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40401-72-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,4,0 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 40401-72:
(7*4)+(6*0)+(5*4)+(4*0)+(3*1)+(2*7)+(1*2)=67
67 % 10 = 7
So 40401-72-7 is a valid CAS Registry Number.