73505-50-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73505-50-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,5,0 and 5 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 73505-50:
(7*7)+(6*3)+(5*5)+(4*0)+(3*5)+(2*5)+(1*0)=117
117 % 10 = 7
So 73505-50-7 is a valid CAS Registry Number.