52039-57-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 52039-57-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,0,3 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 52039-57:
(7*5)+(6*2)+(5*0)+(4*3)+(3*9)+(2*5)+(1*7)=103
103 % 10 = 3
So 52039-57-3 is a valid CAS Registry Number.