1-(2-chloropyridin-3-yl)ethan-1-one
Also known as: 2-chloro-3-acetylpyridine, 3-acetyl-2-chloropyridine, 1-(2-chloro-3-pyridinyl)ethanone, ethanone, 1-(2-chloro-3-pyridinyl)-, 1-(2-chloropyridin-3-yl)ethanone
1-(2-chloropyridin-3-yl)ethan-1-one (CAS 55676-21-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H6ClNO and a molecular weight of 155.582 g/mol. Key properties include a boiling point of 232.0±20.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 94.1±21.8 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 55676-21-6
- Jingsj CID
- J-1467345-1
- Molecular Formula
- C7H6ClNO
- Molecular Weight
- 155.582 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 232.0±20.0 °C at 760 mmHg |
|---|---|
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 94.1±21.8 °C |
| Exact Mass | 155.013794 |
| PSA | 29.96000 |
| LogP | 0.97 |
| Vapor Pressure | 0.1±0.5 mmHg at 25°C |
| Refractive Index | 1.535 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2933399090 |
|---|---|
| Summary | 2933399090. 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 1-(2-chloropyridin-3-yl)ethan-1-one?
The CAS number of 1-(2-chloropyridin-3-yl)ethan-1-one is 55676-21-6.
What are the molecular formula and molecular weight of 1-(2-chloropyridin-3-yl)ethan-1-one?
1-(2-chloropyridin-3-yl)ethan-1-one has molecular formula C7H6ClNO and molecular weight 155.582 g/mol.
Is 1-(2-chloropyridin-3-yl)ethan-1-one hazardous?
1-(2-chloropyridin-3-yl)ethan-1-one has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 1-(2-chloropyridin-3-yl)ethan-1-one?
For 1-(2-chloropyridin-3-yl)ethan-1-one, Upstream Products: 1-(2-Chloropyridin-3-yl)ethanol, 2-Chloro-N-methoxy-N-methylnicotinamide, Methylmagnesium chloride; Downstream Products: Methyl 5-bromo-1H-pyrazolo[3,4-b]pyridine-3-carboxylate, 5-bromo-1H-pyrazolo[3,4-b]pyridine-3-carboxylic acid, 4-(2-Chloro-3-pyridinyl)-N-methyl-2-pyrimidinamine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-(2-chloropyridin-3-yl)ethan-1-one (CAS 55676-21-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1467345-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.