500104-57-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 500104-57-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,0,1,0 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 500104-57:
(8*5)+(7*0)+(6*0)+(5*1)+(4*0)+(3*4)+(2*5)+(1*7)=74
74 % 10 = 4
So 500104-57-4 is a valid CAS Registry Number.