939043-57-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 939043-57-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,9,0,4 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 939043-57:
(8*9)+(7*3)+(6*9)+(5*0)+(4*4)+(3*3)+(2*5)+(1*7)=189
189 % 10 = 9
So 939043-57-9 is a valid CAS Registry Number.