503543-47-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 503543-47-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,3,5,4 and 3 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 503543-47:
(8*5)+(7*0)+(6*3)+(5*5)+(4*4)+(3*3)+(2*4)+(1*7)=123
123 % 10 = 3
So 503543-47-3 is a valid CAS Registry Number.