Chemical formula:
C22H23ClN2O8

Mechanism of action:
Binds to the 30S subunit of the bacterial ribosome, inhibiting protein synthesis.
Use:
Used in veterinary medicine for bacterial infections.
Side effects:
Similar to tetracycline, includes gastrointestinal upset, photosensitivity, and tooth discoloration.
Example:
Aureomycin is a well-known brand of chlortetracycline.