50939-80-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 50939-80-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,0,9,3 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 50939-80:
(7*5)+(6*0)+(5*9)+(4*3)+(3*9)+(2*8)+(1*0)=135
135 % 10 = 5
So 50939-80-5 is a valid CAS Registry Number.