|English name||spiramycin |
|CAS Registry Number||8025-81-8|
|Boiling point||913.7°C at 760 mmHg|
|Vapour Pressur||0mmHg at 25°C|
|Appearance||White to off white powder.|
|Application||antibiotic medicines for staphylococcus, s. pyogenes, |
streptococcus pneumoniae, syphilis helicoid etc infection.
What is spiramycin?
Spiramycin, white or slightly yellow powder, slightly odor; Micro-hygroscopic;
This product is dissolved in methanol, ethanol, acetone or ether, almost insoluble in water, insoluble in petroleum ether.
It is a macrolide antibiotic obtained from the broth of Streptomyces ambofaciens.
Spiramycin is acetate acetate of acetylspiramycin, which shows strong antibacterial effect after oral administration of deacetylation. Spiramycin is a very strong bacteriostatic agent that only acts as a bactericidal agent at very high concentrations.
Spiramycin is a macrolide antibiotic. It is used to treat toxoplasmosis and various other infections of soft tissues. Although used in Europe, Canada and Mexico, spiramycin is still considered an experimental drug in the United States, but can sometimes be obtained by special permission from the FDA for toxoplasmosis in the first trimester of pregnancy.
What function & Application does spiramycin have?
has a strong antibacterial effect in vivo and post-antibacterial effect (PAE), can enhance the phagocytosis of phagocytic cells, and is widely distributed in the body. This product is higher than the concentration of erythromycin in tissue cells, and the side effects are less than erythromycin. This product can be used to treat ear, nose, throat and respiratory tract infections caused by gram-positive bacteria and certain gram-negative bacteria. It is suitable for the treatment of otitis media, periodontitis, acute sinusitis and other oral and otolaryngitis caused by sensitive bacteria. Section infection. It can also be used to treat toxoplasmosis.
|Appearance||A white or slightly yellowish powder||White powder|
|A. UV Spectrum||The specific absorbance at the maximum (232nm) is about 340.|
|B. TLC||Corresponds to reference solution.|
|C. Color Reaction||Brown colour.|
|Specific optical rotation||-80°- -85°(dried substance)||-83°|
|Composition (HPLC)||Spiramycin≥80.0 %||88.20%|
|Total Spiramycins ≥90.0 %||92.20%|
|Related substances (HPLC)||≤2.0 %||Conform|
|Loss on drying||≤3.5 %||1.40%|
|Sulphated ash||≤0.1 %||Conform|
|Assay (wet substance)||No limits (IU/mg)||4305 IU/mg|
|Assay (dried substance)||≥4100 IU/mg||4366 IU/mg|
|CONCLUSION||CONFORM TO EP VII|