Chemical Component Summary

FormulaC38 H72 N2 O12
Molecular Weight748.98
Isomeric SMILESCC[C@H]1OC(=O)[C@H](C)[C@@H](O[C@H]2C[C@@](C)(OC)[C@@H](O)[C@H](C)O2)[C@H](C)[C@@H](O[C@@H]2O[C@H](C)C[C@@H]([C@H]2O)N(C)C)[C@](C)(O)C[C@@H](C)CN(C)[C@H](C)[C@@H](O)[C@]1(C)O

Chemical Details

Formal Charge0
Atom Count124
Chiral Atom Count18
Chiral AtomsC11, C12, C13, C14, C1A, C1B, C2, C2A, C3, C3A, C3B, C4, C4B, C5, C5A, C5B, C6, C8
Bond Count126
Aromatic Bond Count0
Leaving Atomsn/a

Drug Info: DrugBank

DrugBank IDDB00207 Different stereochemistry
DescriptionAzithromycin is a semi-synthetic macrolide antibiotic of the azalide class. Like other macrolide antibiotics, azithromycin inhibits bacterial protein synthesis by binding to the 50S ribosomal subunit of the bacterial 70S ribosome. Binding inhibits peptidyl transferase activity and interferes with amino acid translocation during the process of translation. Its effects may be bacteriostatic or bactericidal depending of the organism and the drug concentration. Its long half life, which enables once daily dosing and shorter administration durations, is a property distinct from other macrolides.
  • Azithromycine
  • Azithromycinum
  • Azitromicina
  • Azithromycin dihydrate
  • Azithromycin monohydrate
Brand Names
  • Act Azithromycin
  • Apo-azithromycin
  • Apo-azithromycin Z
  • Ava-azithromycin
  • Azasite
Affected Organism
  • Enteric bacteria and other eubacteria
  • Corynebacterium diphtheriae
  • Treponema pallidum
  • Streptococcus pyogenes
  • Chlamydia pneumoniae
IndicationFor the treatment of patients with mild to moderate infections caused by susceptible strains of the designated microorganisms in the specific conditions: <i>H. influenzae</i>, <i>M. catarrhalis</i>, <i>S. pneumoniae</i>, <i>C. pneumoniae</i>, <i>M. pneumoniae</i>, <i>S. pyogenes</i>, <i>S. aureus</i>, <i>S. agal</i>
PharmacologyAzithromycin, a semisynthetic antibiotic belonging to the macrolide subgroup of azalides, is used to treat STDs due to chlamydia and gonorrhea, community-acquired pneumonia, pelvic inflammatory disease, pediatric otitis media and pharyngitis, and <i>Mycobacterium avium</i> complex (MAC) in patients with advanced HIV disease. Similar in structure to erythromycin. azithromycin reaches higher intracellular concentrations than erythromycin, increasing its efficacy and duration of action.
Mechanism of actionAzithromycin binds to the 50S subunit of the 70S bacterial ribosomes, and therefore inhibits RNA-dependent protein synthesis in bacterial cells.
Route of administration
  • Intravenous
  • Ophthalmic
  • Oral
  • Anti-Bacterial Agents
  • Anti-Infective Agents
  • Antibacterials for Systemic Use
  • Antiinfectives for Systemic Use
  • Chemical Actions and Uses
  • J01FA10
  • S01AA26
  • J01RA07
CAS number83905-01-5
Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID:21059682