Cas no 511522-70-6 (2-chloro-4,5-difluoro-pyridine)

2-Chloro-4,5-difluoro-pyridine is a halogenated pyridine derivative with significant utility in pharmaceutical and agrochemical synthesis. Its structure, featuring both chloro and fluoro substituents, enhances reactivity in nucleophilic aromatic substitution reactions, making it a valuable intermediate for constructing complex heterocyclic compounds. The electron-withdrawing effects of the fluorine atoms improve stability and regioselectivity in further functionalization. This compound is particularly useful in the development of active ingredients requiring precise substitution patterns. Its high purity and consistent performance ensure reliable results in research and industrial applications. Proper handling is advised due to its reactive nature.

2-chloro-4,5-difluoro-pyridine structure

511522-70-6 structure

Product Name:2-chloro-4,5-difluoro-pyridine

CAS No:511522-70-6

MF:C₅H₂ClF₂N

MW:149.525887012482

CID:934861

PubChem ID:45079559

Update Time:2025-05-28

2-chloro-4,5-difluoro-pyridine Chemical and Physical Properties

Names and Identifiers

- Pyridine, 2-chloro-4,5-difluoro- (9CI)
- 2-CHLORO-4,5-DIFLUOROPYRIDINE
- Y9275
- 2-chloro-4,5-difluoro-pyridine
- 511522-70-6
- pyridine,2-chloro-4,5-difluoro-
- DTXSID40663734
- AKOS006307156
- SY047692
- CS-0365204
- 2-chloranyl-4,5-bis(fluoranyl)pyridine
- SB53750
- A828464
- J-508713
- MFCD11109699
- MDL： MFCD11109699
- Inchi： 1S/C5H2ClF2N/c6-5-1-3(7)4(8)2-9-5/h1-2H
- InChI Key： NKHHRTHUHYUPCZ-UHFFFAOYSA-N
- SMILES： ClC1C=C(C(=CN=1)F)F

Computed Properties

Exact Mass: 148.98400
Monoisotopic Mass: 148.9843831g/mol
Isotope Atom Count: 0
Hydrogen Bond Donor Count: 0
Hydrogen Bond Acceptor Count: 1
Heavy Atom Count: 9
Rotatable Bond Count: 0
Complexity: 101
Covalently-Bonded Unit Count: 1
Defined Atom Stereocenter Count: 0
Undefined Atom Stereocenter Count : 0
Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0
XLogP3: 2
Topological Polar Surface Area: 12.9?2

Experimental Properties

PSA: 12.89000
LogP: 2.01320

2-chloro-4,5-difluoro-pyridine Pricemore >>

Related Categories	No.	Product Name	Cas No.	Purity	Specification	Price	update time
Chemenu	CM176723-1g	2-Chloro-4,5-difluoro-pyridine	511522-70-6	95%	1g	$574	2021-08-05
Alichem	A023023274-250mg	2-Chloro-4,5-difluoropyridine	511522-70-6	97%	250mg	$707.20	2023-09-01
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Chemenu	CM176723-1g	2-Chloro-4,5-difluoro-pyridine	511522-70-6	95%	1g	$1444	2022-06-11
NAN JING YAO SHI KE JI GU FEN Co., Ltd.	PBU2987-100MG	2-chloro-4,5-difluoro-pyridine	511522-70-6	95%	100MG	￥ 2,230.00	2023-04-13
NAN JING YAO SHI KE JI GU FEN Co., Ltd.	PBU2987-250MG	2-chloro-4,5-difluoro-pyridine	511522-70-6	95%	250MG	￥ 3,564.00	2023-04-13
NAN JING YAO SHI KE JI GU FEN Co., Ltd.	PBU2987-500MG	2-chloro-4,5-difluoro-pyridine	511522-70-6	95%	500MG	￥ 5,940.00	2023-04-13
NAN JING YAO SHI KE JI GU FEN Co., Ltd.	PBU2987-1G	2-chloro-4,5-difluoro-pyridine	511522-70-6	95%	1g	￥ 8,910.00	2023-04-13
NAN JING YAO SHI KE JI GU FEN Co., Ltd.	PBU2987-5G	2-chloro-4,5-difluoro-pyridine	511522-70-6	95%	5g	￥ 26,730.00	2023-04-13