U.S. Food and Drug Administration
Center for Food Safety and Applied Nutrition
NCBI/NLM/NIH Glossary

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tetracycline

(4S-(4 alpha,4a alpha,5a alpha,6 beta,12a alpha))-4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,6,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide. An antibiotic originally produced by Streptomyces viridifaciens, but used mostly in synthetic form

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