40243-18-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40243-18-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,2,4 and 3 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 40243-18:
(7*4)+(6*0)+(5*2)+(4*4)+(3*3)+(2*1)+(1*8)=73
73 % 10 = 3
So 40243-18-3 is a valid CAS Registry Number.