5-chloro-2(1H)-pyridinone
Also known as: 5-chloro-2-hydroxypyridine, 5-chloro-2-pyridinol, 5-chloropyridin-2(1H)-one, 5-chloro-1H-pyridin-2-one, 5-chloro-2-pyridone, 2-hydroxy-5-chloropyridine
5-chloro-2(1H)-pyridinone (CAS 4214-79-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H4ClNO and a molecular weight of 129.54 g/mol. Key properties include a melting point of 163-165 °C(lit.), a boiling point of 311.0±22.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 141.9±22.3 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4214-79-3
- Jingsj CID
- J-1042572-6
- Molecular Formula
- C5H4ClNO
- Molecular Weight
- 129.54 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 163-165 °C(lit.) |
|---|---|
| Boiling Point | 311.0±22.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 141.9±22.3 °C |
| Exact Mass | 128.998138 |
| PSA | 33.12000 |
| LogP | 0.55 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.584 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Frequently Asked Questions
What is the CAS number of 5-chloro-2(1H)-pyridinone?
The CAS number of 5-chloro-2(1H)-pyridinone is 4214-79-3.
What are the molecular formula and molecular weight of 5-chloro-2(1H)-pyridinone?
5-chloro-2(1H)-pyridinone has molecular formula C5H4ClNO and molecular weight 129.54 g/mol.
Is 5-chloro-2(1H)-pyridinone hazardous?
5-chloro-2(1H)-pyridinone has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 5-chloro-2(1H)-pyridinone?
For 5-chloro-2(1H)-pyridinone, Upstream Products: 2(1H)-Pyridone, 2-Amino-5-chloropyridine, Ethanol; Downstream Products: 2-Bromo-5-chloropyridine, 1-(5-Chloropyridin-2-yl)piperazine, 2,5-Dichloropyridine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-chloro-2(1H)-pyridinone (CAS 4214-79-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1042572-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.