Skip to main content

Ethionamide

Also known as: 2-Ethylpyridine-4-carbothioamide, 2-Ethylthioisonicotinamide, 2-Ethyl-4-pyridinecarbothioamide, 2-Ethyl-4-thiocarbamoylpyridine, 2-Ethylisonicotinic thioamide, Trecator, Trecator-SC, Etionamid, 1314 TH, 1314 TN

Ethionamide (CAS 536-33-4) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C8H10N2S and a molecular weight of 166.24300 g/mol. Key properties include a melting point of 164 °C, a boiling point of 167 °C / 1mmHg, a density of 1.17 g/cm3 and a flash point of 133.2ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H361 — Suspected of damaging fertility or the unborn child. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
536-33-4
Jingsj CID
J-26488-0
Molecular Formula
C8H10N2S
Molecular Weight
166.24300 g/mol
Category
Organic Bases
Last updated
11/3/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point164 °C
Boiling Point167 °C / 1mmHg
Density1.17 g/cm3
Flash Point133.2ºC
Exact Mass166.05600
PSA71.00000
LogP1.97850
Refractive Index1.599

GHS Safety & Compliance

Irritant / Health HazardSignal word: Warning
  • H302 — Harmful if swallowed
  • H361 — Suspected of damaging fertility or the unborn child

Activity & Biological Data

Additional Information[1]. Vannelli, T.A., A. Dykman, and P.R. Ortiz de Montellano, The antituberculosis drug ethionamide is activated by a flavoprotein monooxygenase. J Biol Chem, 2002. 277(15): p. 12824-9. [2]. Quemard, A., G. Laneelle, and C. Lacave, Mycolic acid synthesis: a target for ethionamide in mycobacteria? Antimicrob Agents Chemother, 1992. 36(6): p. 1316-21.

Customs & Trade Information

HS Code2933399090
Summary2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Ethionamide?

The CAS number of Ethionamide is 536-33-4.

What are the molecular formula and molecular weight of Ethionamide?

Ethionamide has molecular formula C8H10N2S and molecular weight 166.24300 g/mol.

Is Ethionamide hazardous?

Ethionamide has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H361 — Suspected of damaging fertility or the unborn child.

What are the upstream and downstream products of Ethionamide?

For Ethionamide, Upstream Products: 2-Ethylisonicotinamide, 2-ethylisonicotinonitrile, Methyl 2-ethylisonicotinate; Downstream Products: 2-Ethylisonicotinamide, 2-ethylisonicotinonitrile.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Ethionamide (CAS 536-33-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26488-0 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.