2-ETHYNYLPYRIDINE
Uses- Product Name
- 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
- Formula Weight
- 103.12
- MOL File
- 1945-84-2.mol
2-ETHYNYLPYRIDINE Property
- Melting point:
- 77-78 C
- Boiling point:
- 85 °C/12 mmHg (lit.)
- Density
- 1.021 g/mL at 25 °C (lit.)
- refractive index
- n20/D 1.56(lit.)
- 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)
Safety
- 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
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 469920
- Product name
- 2-Ethynylpyridine
- Purity
- 98%
- Packaging
- 1g
- Price
- $43.91
- Updated
- 2025/07/31
- Product number
- 469920
- Product name
- 2-Ethynylpyridine
- Purity
- 98%
- Packaging
- 5g
- Price
- $149
- Updated
- 2025/07/31
- Product number
- E0340
- Product name
- 2-Ethynylpyridine
- Purity
- >97.0%(GC)
- Packaging
- 1mL
- Price
- $36
- Updated
- 2025/07/31
- Product number
- E0340
- Product name
- 2-Ethynylpyridine
- Purity
- >97.0%(GC)
- Packaging
- 5mL
- Price
- $126
- Updated
- 2025/07/31
- Product number
- 81472
- Product name
- 2-ETHYNYLPYRIDINE,98+%
- Packaging
- 25g
- Price
- $462.71
- Updated
- 2021/12/16
2-ETHYNYLPYRIDINE Chemical Properties,Usage,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
Preparation Products
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View Lastest Price from 2-ETHYNYLPYRIDINE manufacturers
- Product
- 2-ETHYNYLPYRIDINE 1945-84-2
- Price
- US $1.10/g
- Min. Order
- 1g
- Purity
- 99.00%
- Supply Ability
- 100 Tons Min
- Release date
- 2021-10-25
- Product
- 2-ETHYNYLPYRIDINE 1945-84-2
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 98%
- Supply Ability
- 1kg,5kg,100kg
- Release date
- 2019-07-04