5-Chloro-2-hydroxy-3-nitropyridine
Also known as: 5-chloro-3-nitropyridin-2-ol, 5-Chloro-3-nitro-2-pyridinol, 2-hydroxy-3-nitro-5-chloropyridine, 2-hydroxy-5-chloro-3-nitropyridine, 5-chloro-3-nitro-1H-pyridin-2-one, 5-Chloro-3-nitropyridin-2-ol, 5-Chloro-2-hydroxy-3-nitropyridine,97%, 2-pyridinol, 5-chloro-3-nitro-, 5-CHLORO-3-NITRO-2-PYRIDINOL, 5-Chlor-3-nitro-pyridin-2-ol, MFCD00114884
5-Chloro-2-hydroxy-3-nitropyridine (CAS 21427-61-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H3ClN2O3 and a molecular weight of 174.542 g/mol. Key properties include a melting point of 234 °C, a boiling point of 316.0±37.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 144.9±26.5 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21427-61-2
- Jingsj CID
- J-22033-7
- Molecular Formula
- C5H3ClN2O3
- Molecular Weight
- 174.542 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 234 °C |
|---|---|
| Boiling Point | 316.0±37.0 °C at 760 mmHg |
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 144.9±26.5 °C |
| Exact Mass | 173.983215 |
| PSA | 78.94000 |
| LogP | 0.98 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.637 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H318 — Causes serious eye damage
- H335 — May cause respiratory irritation
Frequently Asked Questions
What is the CAS number of 5-Chloro-2-hydroxy-3-nitropyridine?
The CAS number of 5-Chloro-2-hydroxy-3-nitropyridine is 21427-61-2.
What are the molecular formula and molecular weight of 5-Chloro-2-hydroxy-3-nitropyridine?
5-Chloro-2-hydroxy-3-nitropyridine has molecular formula C5H3ClN2O3 and molecular weight 174.542 g/mol.
Is 5-Chloro-2-hydroxy-3-nitropyridine hazardous?
5-Chloro-2-hydroxy-3-nitropyridine has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H318 — Causes serious eye damage.
What are the upstream and downstream products of 5-Chloro-2-hydroxy-3-nitropyridine?
For 5-Chloro-2-hydroxy-3-nitropyridine, Upstream Products: 2-Amino-5-chloropyridine, 5-chloro-2(1H)-pyridinone, 2-Amino-5-chloro-3-nitropyridine; Downstream Products: 3-Amino-2-bromo-5-chloropyridine, 5-Chloro-2-cyano-3-nitropyridine, 3-Amino-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-hydroxy-3-nitropyridine (CAS 21427-61-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-22033-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.