2-Ethynylpyridine
- CAS No.
- 1945-84-2
- Chemical Name:
- 2-Ethynylpyridine
- Synonyms
- 2-EthynyL;ethynylpyridine;2-Ethynylpyridine;p-Ethylnylpyridine;2-PYRIDYLACETYLENE;TIMTEC-BB SBB006619;2-ETHYLNYL PYRIDINE;Pyridine, 2-ethynyl-;2-Pyridinylacetylene;2-Ethynylpyridine>
- CBNumber:
- CB5680472
- Molecular Formula:
- C7H5N
- Molecular Weight:
- 103.12
- MDL Number:
- MFCD00041598
- MOL File:
- 1945-84-2.mol
- MSDS File:
- SDS
| Melting point | 77-78 C |
|---|---|
| Boiling point | 85 °C/12 mmHg (lit.) |
| Density | 1.021 g/mL at 25 °C (lit.) |
| refractive index |
n |
| Flash point | 170 °F |
| storage temp. | 2-8°C |
| form | Liquid |
| pka | 2.31±0.12(Predicted) |
| Specific Gravity | 1.021 |
| color | Clear dark brown |
| Water Solubility | Soluble in water. |
| BRN | 1098904 |
| InChI | InChI=1S/C7H5N/c1-2-7-5-3-4-6-8-7/h1,3-6H |
| InChIKey | NHUBNHMFXQNNMV-UHFFFAOYSA-N |
| SMILES | C1(C#C)=NC=CC=C1 |
| CAS DataBase Reference | 1945-84-2(CAS DataBase Reference) |
| 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 | Eyeshields, Gloves, type ABEK (EN14387) respirator filter | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36-37/39 | |||||||||
| WGK Germany | 3 | |||||||||
| HS Code | 29339900 | |||||||||
| Storage Class | 10 - Combustible liquids | |||||||||
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
|||||||||
| NFPA 704 |
|
2-Ethynylpyridine price More Price(70)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 469920 | 2-Ethynylpyridine 98% | 1945-84-2 | 1g | $58.7 | 2026-04-30 | Buy |
| Sigma-Aldrich | 469920 | 2-Ethynylpyridine 98% | 1945-84-2 | 5g | $158 | 2026-04-30 | Buy |
| TCI Chemical | E0340 | 2-Ethynylpyridine >97.0%(GC) | 1945-84-2 | 1mL | $32 | 2026-04-30 | Buy |
| TCI Chemical | E0340 | 2-Ethynylpyridine >97.0%(GC) | 1945-84-2 | 5mL | $113 | 2026-04-30 | Buy |
| TRC | TRC-E937503-500MG | 2-Ethynylpyridine | 1945-84-2 | 500mg | $84 | 2026-06-03 | Buy |
2-Ethynylpyridine Chemical Properties, Uses, Production
Uses
2-ETHYNYLPYRIDINE is a useful research chemical.
Chemical Properties
clear dark brown liquid
Uses
2-Ethynylpyridine is an important raw material and intermediate used in organic synthesis, pharmaceuticals, agrochemicals and dyestuff fields.
Synthesis Reference(s)
Synthesis, p. 364, 1981 DOI: 10.1055/s-1981-29448
General Description
2-Ethynylpyridine is a pyridine derivative.
Synthesis
86521-05-3
1945-84-2
The general procedure for the synthesis of 2-ethynylpyridine from 2-pyridynyltrimethylsilane was as follows: 2-((trimethylmethylsilyl)ethynyl)pyridine (175 mg, 1.0 mmol) was dissolved in a mixed solvent of methanol/dichloromethane (2 mL/1 mL). The reaction system was cooled to 0 °C and potassium hydroxide (112 mg, 2.0 mmol) was subsequently added. After stirring the reaction mixture for 0.5 h at 0 °C, the reaction was quenched with deionized water. The reaction mixture was extracted with dichloromethane (2 x 3 mL) and the organic phases were combined. The organic phase was dried with anhydrous sodium sulfate, filtered and concentrated under reduced pressure to give the target product 2-ethynylpyridine (80 mg, 80% yield).
References
[1] Angewandte Chemie - International Edition, 2015, vol. 54, # 27, p. 7949 - 7953
[2] Angew. Chem., 2015, vol. 127, # 27, p. 8060 - 8064,5
[3] Canadian Journal of Chemistry, 2005, vol. 83, # 6-7, p. 716 - 727
[4] Dalton Transactions, 2016, vol. 45, # 25, p. 10209 - 10221
[5] Phosphorus, Sulfur and Silicon and Related Elements, 2002, vol. 177, # 5, p. 1041 - 1045
2-Ethynylpyridine Preparation Products And Raw materials
Raw materials
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Preparation Products
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| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shanghai Yao Sen Biotechnology Co., LTD | 18916117619 18916117619 | 2648165562@qq.com | China | 492 | 58 |
| Hangzhou Bingochem Co., Ltd. | 0571-87658025 | sales@bingochem.com | China | 21532 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Beijing HwrkChemical Technology Co., Ltd | 89508211 18501085097 | sales.bj@hwrkchemical.com | China | 9407 | 55 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Beijing Ouhe Technology Co., Ltd | 13552068683 13522913783 | 2355560935@qq.com | China | 11777 | 60 |
| JinYan Chemicals(ShangHai) Co.,Ltd. | 13817811078 | sales@jingyan-chemical.com | China | 9963 | 60 |
View Latest Price from 2-Ethynylpyridine manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-08-20 | 2-ETHYNYLPYRIDINE
1945-84-2
|
$1.10 | 1g | 99.00% | 100 Tons Min | Dideu Industries Group Limited | |
 |
2019-07-06 | 2-ETHYNYLPYRIDINE
1945-84-2
|
$1.00 | 1KG | 98% | 1kg,5kg,100kg | Career Henan Chemical Co |
-
- 2-ETHYNYLPYRIDINE
1945-84-2
- $1.10
- 99.00%
- Dideu Industries Group Limited
-
- 2-ETHYNYLPYRIDINE
1945-84-2
- $1.00
- 98%
- Career Henan Chemical Co
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