40452-91-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40452-91-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,4,5 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 40452-91:
(7*4)+(6*0)+(5*4)+(4*5)+(3*2)+(2*9)+(1*1)=93
93 % 10 = 3
So 40452-91-3 is a valid CAS Registry Number.