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Natamycin

Name: Natamycin
Brand: Selleck Chemicals
SKU: S1517
Rating: 5 (2 reviews)

Synonyms: Pimaricin

Catalog No.S1517 Purity:99.92%

Natamycin (Pimaricin), a natural and versatile anti-fungal agent during fermentation by the bacterium Streptomyces natalensis, commonly found in soil; with little to no flavour interference

Natamycin Chemical Structure

CAS No. 7681-93-8

Purity & Quality Control

Batch: Purity: 99.92%

99.92

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Biological Activity

Description	Natamycin (Pimaricin), a natural and versatile anti-fungal agent during fermentation by the bacterium Streptomyces natalensis, commonly found in soil; with little to no flavour interference

In vitro
In vitro	Natamycin binds specifically to ergosterol present in model membranes. Natamycin does not change the permeability of the yeast plasma membrane under conditions that growth is blocked. ^[1] Natamycin blocks the fusion of isolated vacuoles without compromising the barrier function of the vacuolar membrane. Natamycin perturbs the cellular vacuole morphology, causing the formation of many more small vacuolar structures in yeast cells. Natamycin inhibits the priming stage of vacuole fusion. ^[2] Natamycin shows low MIC against the dematiaceous fungi, Curvularia species. ^[3] Natamycin is complexed with gamma-cyclodextrin (NT-gamma CyD) to increase the solubility and stability of NT in aqueous solutions and reduce the side effects of the drug without decreasing antimycotic activity. ^[4] MIC90 of Natamycin alone and Natamycin-gamma CyD complexes are below 0.0313 mg/mL, suggesting that complexation with gamma CyD has effectively increased the antimycotic activity of Natamycin, thus indicating the clinical usefulness of Natamycin-gamma CyD complexes. ^[5]

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
Clinical Trial Information (data from https://clinicaltrials.gov, updated on 2024-05-22)
NCT00997035	Completed	Corneal Ulcer\|Eye Infections Fungal	University of California San Francisco\|Aravind Eye Hospitals India\|Dartmouth-Hitchcock Medical Center\|Lumbini Eye Institute and Hospital\|Bharatpur Eye Hospital\|National Eye Institute (NEI)	May 2010	Phase 3

References

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Chemical Information & Solubility

Molecular Weight	665.73	Formula	C₃₃H₄₇NO₁₃
CAS No.	7681-93-8	SDF	Download Natamycin SDF
Smiles	CC1CC=CC=CC=CC=CC(CC2C(C(CC(O2)(CC(CC3C(O3)C=CC(=O)O1)O)O)O)C(=O)O)OC4C(C(C(C(O4)C)O)N)O
Storage (From the date of receipt)	3 years-20°Cpowder	Storage of Stock Solutions Aliquot the stock solutions to avoid repeated freeze-thaw cycles	1 year-80°Cin solvent
Storage (From the date of receipt)	3 years-20°Cpowder		1 month-20°Cin solvent

In vitro
Batch:

DMSO : 10 mg/mL ( (15.02 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Water : Insoluble

Ethanol : Insoluble

Molecular Weight Calculator

In vivo
Batch:

Add solvents to the product individually and in order.

In vivo Formulation Calculator

Preparing Stock Solutions

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
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Dilution Calculator Molecular Weight Calculator

In vivo Formulation Calculator (Clear solution)

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

Dosage: mg/kg Average weight of animals: g Dosing volume per animal:μL Number of animals:

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.

Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

Tel: +1-832-582-8158 Ext:3
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