Formulation: A crystalline solid
Formal Name: (3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-6-(((2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-14-ethyl-7,12,13-trihydroxy-4-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,7,9,11,13-hexamethyloxacyclotetradecane-2,10-dione
Purity: ≥98%
Formula Markup: C37H67NO13
Formula Weight: 733,9
Shelf life (days): 1460
CAS Number: 114-07-8
Notes: Erythromycin is a macrolide antibiotic that inhibits bacterial protein synthesis by targeting the 50S ribosomal subunit, blocking the progression of nascent polypeptide chains.{22680} It is active against a host of bacterial genera, including Streptococcus, Staphylococcus, and Haemophilus (MIC90s = 0.015-2.0 mg/l).{22758} Erythromycin (10-40 mg/kg) dose-dependently inhibits the growth of S. aureus in a mouse model of thigh infection.{42209} It also inhibits the cytochrome P450 (CYP450) isoform CYP3A4 in vitro with IC50 values of 33 and 27.3 µM for α-hydroxytriazolam and 4-hydroxytriazolam formation, respectively, following administration of triazolam, which is known to be metabolized primarily by CYP3A4.{22760,42210} Formulations containing erythromycin have been used in the treatment of bacterial respiratory and skin infections, pertussis, and a variety of other bacterial infections.
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