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Spiramycin Antibiotics chemical

Cat.No.S4082

Spiramycin (Formacidine) is a 16-membered ring macrolide (antibiotic).
Spiramycin Antibiotics chemical Chemical Structure

Chemical Structure

Molecular Weight: 843.05

Quality Control

Chemical Information, Storage & Stability

Molecular Weight 843.05 Formula

C43H74N2O14

Storage (From the date of receipt)
CAS No. 8025-81-8 Download SDF Storage of Stock Solutions

Synonyms Formacidine Smiles CC1CC=CC=CC(C(CC(C(C(C(CC(=O)O1)O)OC)OC2C(C(C(C(O2)C)OC3CC(C(C(O3)C)O)(C)O)N(C)C)O)CC=O)C)OC4CCC(C(O4)C)N(C)C

Solubility

In vitro
Batch:

DMSO : 100 mg/mL ( (118.61 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Ethanol : 100 mg/mL

Water : Insoluble

Molarity Calculator

Mass Concentration Volume Molecular Weight

In vivo
Batch:

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

mg/kg g μL

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO % % Tween 80 % ddH2O
%DMSO %

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Mechanism of Action

In vitro
Spiramycin reduces the hygromycin A protections of nucleotides in 23 S rRNA. [1] This compound, a 16-membered macrolide, inhibits translocation by binding to bacterial 50S ribosomal subunits with an apparent 1:1 stoichiometry. It acts primarily by stimulating the dissociation of peptidyl-tRNA from ribosomes during translocation. [2] This antibiotic at doses sufficient to inhibit protein synthesis in wild-type cells but not sufficient to kill either mutant or wild-type cells at the permissive temperature (30 degrees C). It inhibits protein synthesis by stimulating the dissociation of peptidyl-tRNA from ribosomes. [3] This agent shows dose-related inhibition of the proliferative response of PHA and PWM stimulated human mononuclear leucocytes (MNL). It also induces a decrease in tritiated uridine (3H-UdR) uptake, which suggests that this compound interferes with an early event in the cell cycle. [4] This chemical and, to a lesser extent, erythromycin increases total IL-6 production without affecting IL-1 alpha, IL-1 beta, or tumor necrosis factor alpha production in human monocytes stimulated with lipopolysaccharide. [5] It shows good antimicrobial activity against species of Prevotella, Eubacterium, Peptostreptococcus, Bacteroides and Porphyromonas, and the effect is enhanced by the addition of Metronidazole. [6]
References
  • https://pubmed.ncbi.nlm.nih.gov/3700286/
  • https://pubmed.ncbi.nlm.nih.gov/1759822/
  • https://pubmed.ncbi.nlm.nih.gov/9338486/

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