500540-56-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 500540-56-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,0,5,4 and 0 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 500540-56:
(8*5)+(7*0)+(6*0)+(5*5)+(4*4)+(3*0)+(2*5)+(1*6)=97
97 % 10 = 7
So 500540-56-7 is a valid CAS Registry Number.