500104-42-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 500104-42-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,0,1,0 and 4 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 500104-42:
(8*5)+(7*0)+(6*0)+(5*1)+(4*0)+(3*4)+(2*4)+(1*2)=67
67 % 10 = 7
So 500104-42-7 is a valid CAS Registry Number.