540506-82-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 540506-82-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,0,5,0 and 6 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 540506-82:
(8*5)+(7*4)+(6*0)+(5*5)+(4*0)+(3*6)+(2*8)+(1*2)=129
129 % 10 = 9
So 540506-82-9 is a valid CAS Registry Number.