3-Ethynylpyridazine

3-Ethynylpyridazine - Names and Identifiers

Name	3-Ethynylpyridazine
Synonyms	3-Ethynylpyridazine 3-Ethynyl-pyridazine Pyridazine, 3-ethynyl- pyridazine, 3-ethynyl-
CAS	1017793-08-6
InChI	InChI=1S/C6H4N2/c1-2-6-4-3-5-7-8-6/h1,3-5H

3-Ethynylpyridazine - Physico-chemical Properties

Molecular Formula	C6H4N2
Molarmassa	104.11
Täthet	1.11±0.1 g/cm3(Predicted)
Boling Point	248.0±13.0 °C(Predicted)
pKa	1.27±0.10(Predicted)
Lagringstillstånd	under inert gas (nitrogen or Argon) at 2–8 °C

3-Ethynylpyridazine - Introduction

3-Ethynyl-pyridazine is an organic compound with the chemical formula C5H4N2. The following is a description of its nature, use, formulation and safety information:

1. nature:
3-Ethynyl-pyridazine is a solid crystal, and its appearance is white to yellow crystal. It is an organic nitrogen heterocyclic compound with good solubility and is soluble in many organic solvents. Its melting point is 92-94°C.

2. use:
3-ethynyl-pyridazine is widely used as a reagent and raw material in organic synthesis. It can be used to synthesize a variety of target compounds, such as spirocoumarins and other nitrogen-containing heterocyclic compounds. In addition, it can also be used as a component of coloring agents and inks.

3. Preparation method:
3-Ethynyl-pyridazine can be prepared by a variety of methods. One commonly used method is the reaction of 2-aminopyrrole with sodium ethynyl in the presence of acetylacetylene bromide to yield 3-ethynyl-pyridazine. Other synthetic methods include the use of cyanated cyanoacetate or other hydrocyanate-containing starting materials.

4. Safety Information:
3-Ethynyl-pyridazine currently has no specific safety reports or prohibited information. However, as an organic compound, it may cause potential harm to human health, such as irritation and allergy. Therefore, when using or handling, follow relevant laboratory safety procedures and avoid inhalation, swallowing or contact with skin and eyes. If necessary, wear appropriate protective equipment and properly store and handle the compound. Before any operation, the relevant safety data sheets and operating manuals should be carefully read and observed.