7589-57-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7589-57-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,5,8 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 7589-57:
(6*7)+(5*5)+(4*8)+(3*9)+(2*5)+(1*7)=143
143 % 10 = 3
So 7589-57-3 is a valid CAS Registry Number.