CAS No. 536-33-4
Batch:
Purity:99.83
Chemical Structure
Check the
Ethionamide
product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.
Chemical Information
| CAS Number | 536-33-4 | |
|---|---|---|
| Molecular Formula |
C8H10N2S |
|
| Molecular Weight (MW) | 166.24 | |
| SMILES | CCC1=NC=CC(=C1)C(=S)N |
Biological Activity
Ethionamide is a second-line antitubercular antibiotic used for the treatment of Mycobacterium tuberculosis infections. It functions as a prodrug that inhibits InhA, an enoyl-ACP reductase required for mycolic acid biosynthesis. By blocking mycolic acid synthesis, ethionamide impairs bacterial cell wall assembly and halts cellular growth, ultimately resulting in mycobacterial cell death. [1]
How to Prepare Stock Solution?
|
Concentration
Volume
Mass
|
|---|
Solubility
Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
| Solvent | Solubility & Note |
|---|---|
| DMSO |
33 mg/mL
(198.5 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Ethanol | 17 mg/mL |
| Water | Insoluble |
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
- Preheat media/saline to 37°C.
- Mix rapidly (pipette/vortex) upon addition.
- For complex mixes, always add the aqueous phase last.
- Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).
Pre-aliquoted for Longevity: Solid-state aliquots offer longer shelf life compared to stock solutions.
Looking for a specific aliquot size? Contact your local sales representative or orders@selleckchem.com.
Reference
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Note: Technical data last updated: Sep 1, 2026.