4-Chloro-2,3-difluoropyridine
Also known as: 2,3-Difluoro-4-chloropyridine, 4-Chloro-2,3-difluoro-pyridine, Pyridine, 4-chloro-2,3-difluoro-
4-Chloro-2,3-difluoropyridine (CAS 851178-99-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H2ClF2N and a molecular weight of 149.526 g/mol. Key properties include a melting point of -25--23℃, a boiling point of 150.0±35.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 44.5±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 851178-99-9
- Jingsj CID
- J-1494541-6
- Molecular Formula
- C5H2ClF2N
- Molecular Weight
- 149.526 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -25--23℃ |
|---|---|
| Boiling Point | 150.0±35.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 44.5±25.9 °C |
| Exact Mass | 148.984390 |
| PSA | 12.89000 |
| LogP | 0.90 |
| Vapor Pressure | 5.0±0.3 mmHg at 25°C |
| Refractive Index | 1.479 |
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 4-Chloro-2,3-difluoropyridine?
The CAS number of 4-Chloro-2,3-difluoropyridine is 851178-99-9.
What are the molecular formula and molecular weight of 4-Chloro-2,3-difluoropyridine?
4-Chloro-2,3-difluoropyridine has molecular formula C5H2ClF2N and molecular weight 149.526 g/mol.
What are the upstream and downstream products of 4-Chloro-2,3-difluoropyridine?
For 4-Chloro-2,3-difluoropyridine, Upstream Products: 2,3-Difluoropyridine, 5-Chloro-2,3-difluoropyridine; Downstream Products: 2,3,4-Trifluoropyridine.
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-2,3-difluoropyridine (CAS 851178-99-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1494541-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.