503555-19-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 503555-19-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,3,5,5 and 5 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 503555-19:
(8*5)+(7*0)+(6*3)+(5*5)+(4*5)+(3*5)+(2*1)+(1*9)=129
129 % 10 = 9
So 503555-19-9 is a valid CAS Registry Number.