Tetomilast
Also known as: OPC-6535, OPC 6535, 6-[2-(3,4-diethoxyphenyl)-1,3-thiazol-4-yl]pyridine-2-carboxylic acid, 6-[2-(3,4-diethoxyphenyl)-4-thiazolyl]-2-pyridinecarboxylic acid, 2-Pyridinecarboxylic acid, 6-[2-(3,4-diethoxyphenyl)-4-thiazolyl]-, 6-(2-(3,4-diethoxyphenyl)thiazol-4-yl)picolinic acid, 6-[2-(3,4-diethoxyphenyl)thiazole-4-yl]pyridine-2-carboxylic acid
Tetomilast (CAS 145739-56-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C19H18N2O4S and a molecular weight of 369.434 g/mol. Key properties include a boiling point of 526.1±50.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 272.0±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 145739-56-6
- Jingsj CID
- J-1973734-9
- Molecular Formula
- C19H18N2O4S
- Molecular Weight
- 369.434 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 526.1±50.0 °C at 760 mmHg |
|---|---|
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 272.0±30.1 °C |
| Exact Mass | 369.103485 |
| PSA | 109.78000 |
| LogP | 4.39 |
| Vapor Pressure | 0.0±1.5 mmHg at 25°C |
| Refractive Index | 1.601 |
Activity & Biological Data
| Additional Information | [1]. Ichikawa H, Okamoto S, Kamada N, et al. Tetomilast suppressed production of proinflammatory cytokines from human monocytes and ameliorated chronic colitis in IL-10-deficient mice. Inflamm Bowel Dis. 2008;14(11):1483-1490. |
|---|
Customs & Trade Information
| HS Code | 2934100090 |
|---|---|
| Summary | 2934100090 other compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Tetomilast?
The CAS number of Tetomilast is 145739-56-6.
What are the molecular formula and molecular weight of Tetomilast?
Tetomilast has molecular formula C19H18N2O4S and molecular weight 369.434 g/mol.
What are the upstream and downstream products of Tetomilast?
For Tetomilast, Upstream Products: 3,4-Diethoxybenzonitrile, 6-Acetylpyridine-2-carboxylic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Tetomilast (CAS 145739-56-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1973734-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.