Molekula
Ethionamide
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Ethionamide is an antimicrobial agent used primarily in the treatment of tuberculosis, particularly drug-resistant strains. It functions as a second-line antitubercular drug by inhibiting mycolic acid synthesis in Mycobacterium tuberculosis. Available in powder form with a molecular formula of C8H10N2S, a molecular weight of 166.24 g/mol, and a CAS number of 536-33-4. Stored at ambient temperature, it carries a warning signal word due to its toxicity. Molekula supplies Ethionamide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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5 g — £30.90 per pack ex VAT · £37.08 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Yellow crystalline powder |
| Melting Point | 158 - 164 Deg C |
| Water | <2.0% |
| pH | 6 - 7 |
| Assay | >98% |
| Residue on Ignition | <0.2% |
| Selenium (Se) | <30ppm |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Odour | Faint to moderate sulfide odor |
| Melting Point | 164-166 °C (decomposes) |
| log P (octanol/water) | 0.3699 |
Source: PubChem CID 2761171 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 30727017 |
| CAS Number | 536-33-4 |
| IUPAC Name | 2-ethylpyridine-4-carbothioamide |
| EC Number | 208-628-9 |
| Molecular Formula | C8H10N2S |
| Molecular Weight | 166.24 |
| Exact Mass | 166.0565 |
| SMILES | CCC1=NC=CC(=C1)C(=S)N |
| InChIKey | AEOCXXJPGCBFJA-UHFFFAOYSA-N |
| InChI | InChI=1S/C8H10N2S/c1-2-7-5-6(8(9)11)3-4-10-7/h3-5H,2H2,1H3,(H2,9,11) |
| PubChem CID | 2761171 |
| REACH Code | Y110 |
| HTS Code | 2933.39.4100 |
| Tariff Code | 2933399999 |
Safety & GHS
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H302 Harmful if swallowed
- H361 Suspected of damaging fertility or the unborn child
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P263 Avoid contact during pregnancy/while nursing
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
- P501 Dispose of contents/container to an approved waste disposal plant
Documents
Safety Data Sheets (SDS)
Available in English, German, Spanish, French, Italian, Portuguese, Arabic, Dutch.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 2-ethylpyridine-4-carbothioamide
- 2-Ethylthioisonicotinamide
- Amidazine
- Ethinamide
- Ethioniamide
- Ethyonomide
- Etionamid
- Etioniamid
- Nizotin
- Trecator
Frequently asked questions
What is ethionamide used for?
Ethionamide is primarily used as an **antituberculosis drug**, often in combination with other medications to treat multi-drug-resistant tuberculosis (MDR-TB).
What is the chemical formula and molecular weight of ethionamide?
The chemical formula is **C₈H₁₀N₂S**, and the molecular weight is **166.24 g/mol**.
How should ethionamide be stored?
Store ethionamide at **ambient temperature** in a dry, well-ventilated area, away from incompatible substances.
What grades or purities of ethionamide does Molekula supply?
Molekula supplies **pharmaceutical-grade ethionamide** (meeting USP/EP/BP standards) for research, development, and clinical applications.
Can Molekula supply ethionamide in bulk quantities?
Yes, Molekula can provide ethionamide in **bulk quantities** upon request, subject to availability and regulatory compliance.
What documentation comes with an order of ethionamide?
Each order includes a **Certificate of Analysis (CoA)**, **Safety Data Sheet (SDS)**, and **batch-specific documentation** for traceability and compliance.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.