98%

Store at -20℃ for one year（Powder）；Store at 2-4℃ for two weeks；Store at -20℃ for six months after dissolution.

琥乙红mei素；Erythromycin ethyl succinate； EES

白色粉末

DMSO : 158 mg/mL (183.3 mM)

Ethanol : 158 mg/mL (183.3 mM)

Erythromycin displays antibacterial activity against Staphylococcus aureus, streptococcus pneumonia, Streptococcus pyogenes, Haemophilus influenza, Moraxella catarrhalis, Bordetella pertussis, Neisseria gonorrhoeae, Campylobacter jejuni, Helicobacter pylori, and Borrelia burgdorferi. Erythromycin is a motilin receptor agonist, which is a potent stimulator of gastrointestinal motor activity. The concentrations of Erythromycin required to induce 50% of the maximum contractile response to a supramaximal dose of acetylcholine is 2 μM. The concentrations of Erythromycin required to displace 50% of the labeled motilin is 13 μM. Erythromycin has no effect on muscle strips of rat or dog duodenum but induces contractions in human strips.