75839-80-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75839-80-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,8,3 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 75839-80:
(7*7)+(6*5)+(5*8)+(4*3)+(3*9)+(2*8)+(1*0)=174
174 % 10 = 4
So 75839-80-4 is a valid CAS Registry Number.