4-chloro-3(2H)-pyridazinone
Also known as: 4-chloropyridazin-3-ol, 4-chloro-2H-pyridazin-3-one, 4-chloro-2,3-dihydropyridazin-3-one, 5-chloro-1H-pyridazin-6-one, 4-chloro-3-pyridazone, 4-chloropyridazin-3(2H)-one, 4-chloro-3-pyridazinol
4-chloro-3(2H)-pyridazinone (CAS 1677-79-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C4H3ClN2O and a molecular weight of 130.532 g/mol. Key properties include a boiling point of 307.6±22.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 139.8±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1677-79-8
- Jingsj CID
- J-1492338-7
- Molecular Formula
- C4H3ClN2O
- Molecular Weight
- 130.532 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 307.6±22.0 °C at 760 mmHg |
|---|---|
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 139.8±22.3 °C |
| Exact Mass | 129.993393 |
| PSA | 45.75000 |
| LogP | 0.35 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.593 |
| Storage Conditions | 2-8°C |
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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 4-chloro-3(2H)-pyridazinone?
The CAS number of 4-chloro-3(2H)-pyridazinone is 1677-79-8.
What are the molecular formula and molecular weight of 4-chloro-3(2H)-pyridazinone?
4-chloro-3(2H)-pyridazinone has molecular formula C4H3ClN2O and molecular weight 130.532 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-chloro-3(2H)-pyridazinone (CAS 1677-79-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1492338-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.