40553-18-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40553-18-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,5,5 and 3 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 40553-18:
(7*4)+(6*0)+(5*5)+(4*5)+(3*3)+(2*1)+(1*8)=92
92 % 10 = 2
So 40553-18-2 is a valid CAS Registry Number.