2-Acetylphenothiazine
Also known as: ML171, 2-APT, 2-Acetyl-10H-phenothiazine, 1-(10H-Phenothiazin-2-yl)ethanone, methyl phenothiazin-2-yl ketone, NOX1 Inhibitor, ML171, Ethanone, 1-(10H-phenothiazin-2-yl)-
2-Acetylphenothiazine (CAS 6631-94-3) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C14H11NOS and a molecular weight of 241.30800 g/mol. Key properties include a melting point of 180-185 °C(lit.), a boiling point of 455.7ºC at 760 mmHg, a density of 1.249 g/cm3 and a flash point of 229.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 6631-94-3
- Jingsj CID
- J-26819-9
- Molecular Formula
- C14H11NOS
- Molecular Weight
- 241.30800 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 180-185 °C(lit.) |
|---|---|
| Boiling Point | 455.7ºC at 760 mmHg |
| Density | 1.249 g/cm3 |
| Flash Point | 229.4ºC |
| Exact Mass | 241.05600 |
| PSA | 54.40000 |
| LogP | 4.23540 |
| Refractive Index | 1.653 |
Activity & Biological Data
| Target | IC50: 0.25 μM (HEK293-Nox1), 0.129 μM (HT29)[1] |
|---|---|
| Additional Information | [1]. Gianni D, et al. A novel and specific NADPH oxidase-1 (Nox1) small-molecule inhibitor blocks the formation of functional invadopodia in human colon cancer cells. ACS Chem Biol. 2010 Oct 15;5(10):981-93. |
Customs & Trade Information
| HS Code | 2934300000 |
|---|---|
| Summary | 2934300000. other compounds containing in the structure a phenothiazine ring-system (whether or not hydrogenated), not further fused. 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 2-Acetylphenothiazine?
The CAS number of 2-Acetylphenothiazine is 6631-94-3.
What are the molecular formula and molecular weight of 2-Acetylphenothiazine?
2-Acetylphenothiazine has molecular formula C14H11NOS and molecular weight 241.30800 g/mol.
What are the upstream and downstream products of 2-Acetylphenothiazine?
For 2-Acetylphenothiazine, Upstream Products: Phenothiazine, Acetyl chloride, 10H-Phenothiazine-10-carbonyl chloride; Downstream Products: 3-(Dimethylamino)-1-(10H-phenothiazin-2-yl)-2-propen-1-one, 2-(1H-Pyrazol-3-yl)-10H-phenothiazine, Acepromazine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Acetylphenothiazine (CAS 6631-94-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26819-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.