Chlortetracycline is a tetracycline

Tetracycline antibiotics

Tetracyclines are a group of broad-spectrum antibiotics whose general usefulness has been reduced with the onset of bacterial resistance. Despite this, they remain the treatment of choice for some specific indications....

 antibiotic

Antibiotic

An antibacterial is a compound or substance that kills or slows down the growth of bacteria.The term is often used synonymously with the term antibiotic; today, however, with increased knowledge of the causative agents of various infectious diseases, antibiotic has come to denote a broader range of...

, and was the first tetracycline to be identified. It was discovered in 1945 by Dr. Benjamin Duggar working at Lederle Laboratories under the supervision of Dr.Subba Rao . Duggar identified the antibiotic as the product of a actinomycete he cultured from a soil sample collected from Sanborn Field

Sanborn Field

Sanborn Field is an agricultural experiment field, located on the University of Missouri campus. Established in 1888, Sanborn Field was the first facility in the United States intended to measure erosion and run-off for differing crops and agricultural practices...

 at the University of Missouri

University of Missouri

The University of Missouri System is a state university system providing centralized administration for four universities, a health care system, an extension program, five research and technology parks, and a publishing press. More than 64,000 students are currently enrolled at its four campuses...

. The organism was named Streptomyces aureofaciens

Streptomyces aureofaciens

Streptomyces aureofaciens is a species of Streptomyces.It is the source of many tetracycline antibiotics....

and the isolated drug, Aureomycin, because of their golden color.

In veterinary medicine

Veterinary medicine

Veterinary Medicine is the branch of science that deals with the prevention, diagnosis and treatment of disease, disorder and injury in non-human animals...

, chlortetracycline is commonly used to treat conjunctivitis

Conjunctivitis

Conjunctivitis refers to inflammation of the conjunctiva...

 in cats

Félines

Félines may refer to the following places in France:* Félines, Ardèche, a commune in the department of Ardèche* Félines, Haute-Loire, a commune in the department of Hérault* Félines-Minervois, a commune in the department of Hérault...

.