5540-93-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5540-93-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,5,4 and 0 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 5540-93:
(6*5)+(5*5)+(4*4)+(3*0)+(2*9)+(1*3)=92
92 % 10 = 2
So 5540-93-2 is a valid CAS Registry Number.