54031-09-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54031-09-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,0,3 and 1 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 54031-09:
(7*5)+(6*4)+(5*0)+(4*3)+(3*1)+(2*0)+(1*9)=83
83 % 10 = 3
So 54031-09-3 is a valid CAS Registry Number.