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ERYTHROMYCIN A DIHYDRATE

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ERYTHROMYCIN A DIHYDRATE Basic information

Product Name:
ERYTHROMYCIN A DIHYDRATE
Synonyms:
  • Roxithromycin Impurity A
  • ERYTHROMYCIN A, DIHYDRATE VETRANAL
  • Erythromycin A dihydrateQ: What is Erythromycin A dihydrate Q: What is the CAS Number of Erythromycin A dihydrate Q: What is the storage condition of Erythromycin A dihydrate
  • Erythromycin A, EvoPure
CAS:
59319-72-1
MF:
C37H67NO13.H2O
MW:
751.945
EINECS:
204-040-1
Product Categories:
  • Alphabetic
  • Chemical Structure
  • E
  • EQ - EZAntibiotics
  • MLS
Mol File:
59319-72-1.mol
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ERYTHROMYCIN A DIHYDRATE Chemical Properties

Melting point:
197.6 °C
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Safety Information

WGK Germany 
2
RTECS 
KF4375000
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ERYTHROMYCIN A DIHYDRATE Usage And Synthesis

Uses

Erythromycin A dihydrate is a macrolide antibiotic produced by actinomycete?Streptomyces erythreus?with a broad spectrum of antimicrobial activity. Erythromycin A dihydrate binds to bacterial 50S ribosomal subunits and inhibits?RNA-dependent protein synthesis?by blockage of transpeptidation and/or translocation reactions, without affecting synthesis of nucleic acid[1][2]. Erythromycin A dihydrate also exhibits antitumor and neuroprotective effect in different fields of research[3][4].

Biological Activity

Erythromycin dihyrate is a macrolide antibiotic produced by actinomycetes with broad antibacterial activity. It acts by binding to the bacterial 50S ribosomal subunit and inhibits RNA-dependent protein synthesis by blocking transpeptidation and/or translocation reactions without affecting nucleic acid synthesis .

in vitro

Erythromycin dihyrate inhibits growth of P. falciparum with IC 50 and IC 90 values of 58.2 μM and 104.0 μM, respectively .

in vivo

Mice of the ddY strain began to receive Erythromycin dihyrate 7 days after inoculation of EAC cells, and CDF mice begins to receive Erythromycin dihyrate immediately after inoculation of P388 cells. Erythromycin dihyrate (gastric intubation; 0.1-50 mg/ kg; 30-120 days) decreases tumor growth from the dose of 5 mg/kg, mice receiving 1-10 mg/kg of Erythromycin dihyrate survives much longer than control mice, Only 10% of mice treated with 5 mg/kg of Erythromycin dihyrate had no evidence of tumor formation on day 60, and the mice are alive even at 120 days after inoculation. However, treatment with 50 mg/kg of Erythromycin dihyrate shortens mean survival time in tumorbearing mice by 4-5 days when it compares to controls.

Animal Model: Female ddY mice at the age of 6 weeks with EAC cells or CDF mice at the age of 6 weeks with P388 ce lls
Dosage: 0.1 mg/kg; 0.5 mg/kg; 10 mg/kg; 30 mg/kg; 50 mg/kg
Administration: Gastric intubation; 30-120 days
Result: Decrease tumor growth and prolonged the mean survival time of mice from the dose of 5 mg/kg, however, the 50 mg/kg dosage shortens the MST in tumorbearing mice.

IC 50

Macrolide

References

[1] Gribble MJ, et al. Erythromycin. Med Clin North Am. 1982 Jan;66(1):79-89. DOI:10.1016/s0025-7125(16)31443-2
[2] Nakornchai S, et al. Activity of azithromycin or erythromycin in combination with antimalarial drugs against multidrug-resistant Plasmodium falciparum in vitro. Acta Trop. 2006 Dec;100(3):185-91. Epub 2006 Nov 28. DOI:10.1016/j.actatropica.2006.10.008
[3] Hamada K, et al. Antitumor effect of erythromycin in mice. Chemotherapy. 1995 Jan-Feb. 41(1):59-69. DOI:10.1159/000239325
[4] Katayama Y, et al. Neuroprotective effects of erythromycin on cerebral ischemia reperfusion-injury and cell viability after oxygen-glucose deprivation in cultured neuronal cells. Brain Res. 2014 Nov 7. 1588:159-67. DOI:10.1016/j.brainres.2014.09.016

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