140203-54-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 140203-54-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,2,0 and 3 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 140203-54:
(8*1)+(7*4)+(6*0)+(5*2)+(4*0)+(3*3)+(2*5)+(1*4)=69
69 % 10 = 9
So 140203-54-9 is a valid CAS Registry Number.