400838-44-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 400838-44-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,0,8,3 and 8 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 400838-44:
(8*4)+(7*0)+(6*0)+(5*8)+(4*3)+(3*8)+(2*4)+(1*4)=120
120 % 10 = 0
So 400838-44-0 is a valid CAS Registry Number.