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Ethionamide

Name: Ethionamide
Brand: TargetMol
SKU: T1165
Price: 31 USD
Availability: InStock
Rating: 5 (10 reviews)

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Catalog No. T1165Cas No. 536-33-4

Alias Ethinamide, Bayer 5312, 2-ethylthioisonicotinamide

Ethionamide (2-ethylthioisonicotinamide) is a nicotinamide derivative, with antibacterial activity, used to treat tuberculosis. Although the exact mechanism of action of ethionamide is unknown, it may inhibit the synthesis of mycolic acid, a saturated fatty acid found in the bacterial cell wall, thereby inhibiting bacterial cell wall synthesis. This eventually leads to bacterial cell wall disruption and cell lysis. Ethionamide may be bacteriostatic or bactericidal in action, depending on the concentration of the drug at the site of infection and the susceptibility of the organism involved.

Ethionamide

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Purity: 99.92%

Catalog No. T1165Alias Ethinamide, Bayer 5312, 2-ethylthioisonicotinamideCas No. 536-33-4

Pack Size	Price	USA Warehouse	Global Warehouse
200 mg	$31	In Stock	In Stock
500 mg	$50	-	In Stock
1 g	$66	-	In Stock
1 mL x 10 mM (in DMSO)	$53	In Stock	In Stock

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In Stock Estimated shipping dateUSA Warehouse[1-2 days] Global Warehouse[5-7 days]

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Purity:99.92%

Appearance:Solid

Color:Yellow

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COA HNMR LCMS

Product Introduction

Bioactivity

Description	Ethionamide (2-ethylthioisonicotinamide) is a nicotinamide derivative, with antibacterial activity, used to treat tuberculosis. Although the exact mechanism of action of ethionamide is unknown, it may inhibit the synthesis of mycolic acid, a saturated fatty acid found in the bacterial cell wall, thereby inhibiting bacterial cell wall synthesis. This eventually leads to bacterial cell wall disruption and cell lysis. Ethionamide may be bacteriostatic or bactericidal in action, depending on the concentration of the drug at the site of infection and the susceptibility of the organism involved.
In vitro	Ethionamide is a structural analogue of isoniazid (INH), both are pro-drugs that need to be activated by mycobacterial enzymes to exert their antimicrobial activity. Ethionamide mechanism of action is thought to be identical to INH although the pathway of activation is distinct from that of INH. Ethionamide is activated by an EthA enzyme, leading to the formation of a Soxide metabolite that has considerably better activity than the parent drug. [1] Ethionamide inhibits both biofilm formation and viability of mature biofilms. Ethionamide reduces the content of ergosterol in Cryptococcus spp. planktonic cells and destabilized or permeabilized the fungal cell membrane, leading to leakage of macromolecules. [2] Ethionamide is in general toxic at concentrations above 0.50 mM to HepG2, Caco-2, and RAW macrophage cells, but the toxicity is drastically reduced when Ethionamide is loaded into the microparticles. Ethionamide shows a fast metabolization process in the presence of the thermally carbonized- Porous silicon (TCPSi) particles. [3] Ethionamide is activated in Mycobacterium tuberculosis by the protein encoded by the gene Rv3854c. Ethionamide appear to disrupt cell wall biosynthesis and have at least one common cellular target, the enoyl-acyl carrier protein reductase InhA. [4]
Synonyms	Ethinamide, Bayer 5312, 2-ethylthioisonicotinamide

Chemical Properties

Molecular Weight	166.24
Formula	C₈H₁₀N₂S
Cas No.	536-33-4
Smiles	C(N)(=S)C=1C=C(CC)N=CC1
Relative Density.	1.17 g/cm3

Storage & Solubility Information

Storage

In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature.

Solubility Information

Ethanol: 14 mg/mL (84.22 mM), Sonication is recommended.

H2O: < 1 mg/mL (insoluble or slightly soluble)

DMSO: 75 mg/mL (451.15 mM), Sonication is recommended.

In Vivo Formulation

10% DMSO+40% PEG300+5% Tween 80+45% Saline: 5 mg/mL (30.08 mM), Sonication is recommended.

Please add the solvents sequentially, clarifying the solution as much as possible before adding the next one. Dissolve by heating and/or sonication if necessary. Working solution is recommended to be prepared and used immediately. The formulation provided above is for reference purposes only. In vivo formulations may vary and should be modified based on specific experimental conditions.

Solution Preparation Table

Ethanol/DMSO

	1mg	5mg	10mg	50mg
1 mM	6.0154 mL	30.0770 mL	60.1540 mL	300.7700 mL
5 mM	1.2031 mL	6.0154 mL	12.0308 mL	60.1540 mL
10 mM	0.6015 mL	3.0077 mL	6.0154 mL	30.0770 mL
20 mM	0.3008 mL	1.5038 mL	3.0077 mL	15.0385 mL
50 mM	0.1203 mL	0.6015 mL	1.2031 mL	6.0154 mL

DMSO

	1mg	5mg	10mg	50mg
100 mM	0.0602 mL	0.3008 mL	0.6015 mL	3.0077 mL

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In Vivo Formulation Calculator (Clear solution)

Please enter your animal experiment information in the following box and click Calculate to obtain the stock solution preparation method and in vivo formula preparation method:

For example, if the intended dosage is 10 mg/kg for animals weighing 20 g , with a dosing volume of 100 μL per animal, TargetMol | Animal experiments

and a total of 10 animals are to be administered, using a formulation of TargetMol | reagent

10% DMSO+ 40% PEG300+ 5% Tween 80+ 45% Saline/PBS/ddH₂O , the resulting working solution concentration would be 2 mg/mL.

Stock Solution Preparation:

Dissolve 2 mg of the compound in 100 μL DMSO TargetMol | reagent to obtain a stock solution at a concentration of 20 mg/mL . If the required concentration exceeds the compound's known solubility, please contact us for technical support before proceeding.

Preparation of the In Vivo Formulation:

1) Add 100 μL of the DMSO TargetMol | reagent stock solution to 400 μL PEG300 and mix thoroughly until the solution becomes clear.

2) Add 50 μL Tween 80 and mix well until fully clarified.

3) Add 450 μL Saline,PBS or ddH₂O TargetMol | reagent and mix thoroughly until a homogeneous solution is obtained.

This example is provided solely to demonstrate the use of the In Vivo Formulation Calculator and does not constitute a recommended formulation for any specific compound. Please select an appropriate dissolution and formulation strategy based on your experimental model and route of administration.

All co-solvents required for this protocol, includingDMSO, PEG300/PEG400, Tween 80, SBE-β-CD, and Corn oil, are available for purchase on the TargetMol website.

Dose Conversion

You can also refer to dose conversion for different animals. More Dose Conversion

Tech Support

Please see Inhibitor Handling Instructions for more frequently ask questions. Topics include: how to prepare stock solutions, how to store products, and cautions on cell-based assays & animal experiments, etc