Description
 Clarithromycin is a macrolide antibiotic and is an acid-stable form of erythromycin.  It is effective against gram-negative and gram-positive bacteria.  Clarithromycin has been used to research cardiac transplant rejection and COPD inflammation markers.  It is also an inhibitor and substrate for CYP3A4. 
  Macrolide antibiotics are composed of a macrocyclic lactone ring attached to one or more deoxy sugars. They inhibit bacterial protein synthesis by irreversibly binding the P site of the 50s ribosome, preventing peptide bond formation and translocation. 
  Antibiotics are often used in clinical in vitro tests known as antimicrobial susceptibility tests or ASTs to determine their efficacy against certain bacterial species. They are tested against gram-negative and gram-positive bacteria using panels, discs, and MIC strips by medical microbiologists. ASTs decrease the risk of using an antibiotic against bacteria exhibiting resistance to it, and the results are used in clinical settings to determine which antibiotic(s) to prescribe for various infections. 
  Product Specifications
 Clarithromycin 
  MOLECULAR BIOLOGY GRADE 
  Formula: C38H69NO13 
  MW: 747.95 g/mol 
  Storage/Handling: Store desiccated at 4°C.  Protect from oxidizing agents. 
  PubChem Chemical ID: 84029