75425-73-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75425-73-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,4,2 and 5 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 75425-73:
(7*7)+(6*5)+(5*4)+(4*2)+(3*5)+(2*7)+(1*3)=139
139 % 10 = 9
So 75425-73-9 is a valid CAS Registry Number.