2,3-Dichloropyridine
- CAS No.
- 2402-77-9
- Chemical Name:
- 2,3-Dichloropyridine
- Synonyms
- 3-dichloropydine;2,3-dichloropydine;3-Dichloropyridine;2,3-DICHLOROPYRIDINE;2,3-dichloro-pyridin;Pyridine, 2,3-dichloro-;2,3-Dichloropyridine>2,3-Dichloropyridine,99%;2,3- twochlorine pyridine;2,3-Dichloropyridine ,98%
- CBNumber:
- CB4110338
- Molecular Formula:
- C5H3Cl2N
- Molecular Weight:
- 147.99
- MDL Number:
- MFCD00006229
- MOL File:
- 2402-77-9.mol
| Product description | Number | Pack Size | Price |
| 2,3-Dichloropyridine 99% | D73405 | 10g | $39.5 |
| 2,3-Dichloropyridine >98.0%(GC) | D2906 | 5g | $49 |
| 2,3-Dichloropyridine >98.0%(GC) | D2906 | 25g | $141 |
| 2,3-Dichloropyridine | D438255 | 100g | $85 |
| 2,3-Dichloropyridine | D438255 | 500g | $275 |
| More product size | |||
| Melting point | 64-67 °C (lit.) |
|---|---|
| Boiling point | 242.42°C (rough estimate) |
| Density | 1.5159 (rough estimate) |
| refractive index | 1.5500 (estimate) |
| storage temp. | Inert atmosphere,Room Temperature |
| pka | -0.63±0.10(Predicted) |
| form | Crystalline Powder |
| color | White to slightly beige |
| Water Solubility | slightly soluble |
| BRN | 109811 |
| InChI | InChI=1S/C5H3Cl2N/c6-4-2-1-3-8-5(4)7/h1-3H |
| InChIKey | MAKFMOSBBNKPMS-UHFFFAOYSA-N |
| SMILES | C1(Cl)=NC=CC=C1Cl |
| CAS DataBase Reference | 2402-77-9(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | G8S8JY2HE2 |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 | |||||||||
| target organs | Respiratory system | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xi,Xn | |||||||||
| Risk Statements | 36/37/38-22 | |||||||||
| Safety Statements | 26-36-37/39 | |||||||||
| RIDADR | UN2811 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | US8050000 | |||||||||
| Hazard Note | Irritant | |||||||||
| HazardClass | 6.1 | |||||||||
| HS Code | 29333999 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
|||||||||
| NFPA 704 |
|
2,3-Dichloropyridine price More Price(43)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | D73405 | 2,3-Dichloropyridine 99% | 2402-77-9 | 10g | $39.5 | 2025-07-31 | Buy |
| TCI Chemical | D2906 | 2,3-Dichloropyridine >98.0%(GC) | 2402-77-9 | 5g | $49 | 2025-07-31 | Buy |
| TCI Chemical | D2906 | 2,3-Dichloropyridine >98.0%(GC) | 2402-77-9 | 25g | $141 | 2025-07-31 | Buy |
| TRC | D438255 | 2,3-Dichloropyridine | 2402-77-9 | 100g | $85 | 2021-12-16 | Buy |
| TRC | D438255 | 2,3-Dichloropyridine | 2402-77-9 | 500g | $275 | 2021-12-16 | Buy |
2,3-Dichloropyridine Chemical Properties,Uses,Production
Chemical Properties
White to slightly beige crystalline powder
Uses
2,3-Dichloropyridine is used as a reagent for the preparation of substituted 3-(5-membered heterocycle-carboxamido)pyridine derivatives for treatment of autoimmune and inflammatory diseases. Also in the synthesis, crystal structure and biological activity of novel anthranilic Diamide insecticide with propargyl ether.
Application
As an important fine chemical intermediate, 2,3-Dichloropyridine has been usually applied to the field of pesticide and medicine research.
Reactions
2,3-Dichloropyridine reacts with strong oxidizing agents and mineral acids.
Hazard
2,3-Dichloropyridine is irritating to skin and eyes. It is also irritation to tissues of the mucous membranes and upper respiratory tract.
Synthesis
2,3-dichloropyridine is synthesized from 2-chloronicotinic acid via amidation, Hofmann degradation, diazotization and Sandmeyer reaction.
Structure and conformation
The complete mol-ecule of 2,3-Dichloropyridine, C5H3Cl2N, is generated by crystallographic twofold symmetry, which forces the pyridine N atom and the opposite C—H group to be statistically disordered. In the crystal, weak aromatic π–π stacking [centroid–centroid separation = 3.805 (4)Å and slippage = 1.704Å] leads to [100] stacks of mol-ecules. Short Cl···Cl contacts [3.334 (3)Å] are also observed. Colourless prisms were grown from ethanol.
2,3-Dichloropyridine Preparation Products And Raw materials
Raw materials
Preparation Products
1of3
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| AS WATER CO., LTD. | +86-18994963526 +8618994963526 | 1346073549@qq.com | United Kingdom | 176 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8753 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-13131129325 | sales1@chuanghaibio.com | China | 5242 | 58 |
| Henan Bao Enluo International TradeCo.，LTD | +86-17331933971 | deasea125996@gmail.com | China | 2472 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20128 | 58 |
| airuikechemical co., ltd. | +86-18353166132 | sales02@airuikechemical.com | China | 983 | 58 |
| Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3692 | 58 |
| Hebei Longbang Technology Co., LTD | +86-18633929156 | admin@hblongbang.com | China | 972 | 58 |
| HebeiShuoshengImportandExportco.,Ltd | +86-18532138899 | L18532138899@163.com | China | 939 | 58 |
| Frapp's ChemicalNFTZ Co., Ltd. | +86 (576) 8169-6106 | sales@frappschem.com | China | 880 | 50 |
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View Lastest Price from 2,3-Dichloropyridine manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-02-06 | 2,3-Dichloropyridine
2402-77-9
|
0.99 | RongNa Biotechnology Co.,Ltd | ||||
 |
2026-01-30 | 2,3-Dichloropyridine
2402-77-9
|
US $25.00 / ASSAYS | 100ASSAYS | 99.5% | 100 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
 |
2025-11-18 | 2,3-Dichloropyridine
2402-77-9
|
US $1.10 / g | 1g | 99.00% | 100 Tons min | Dideu Industries Group Limited |
-
- 2,3-Dichloropyridine
2402-77-9
- 0.99
- RongNa Biotechnology Co.,Ltd
-
- 2,3-Dichloropyridine
2402-77-9
- US $25.00 / ASSAYS
- 99.5%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- 2,3-Dichloropyridine
2402-77-9
- US $1.10 / g
- 99.00%
- Dideu Industries Group Limited
