2-Ethynylpyrazine

CAS No. 153800-11-4
Cat. No. CS-0044099
Purity≥98%
MDL No.None

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Type	HazMat Fee
Excepted Quantity	$0.00
FedEx Limited Quantities Ground	$0.00
Hazmat Ground shipping	$50.00+
Inaccessible (Haz class 6.1 or 9), Domestic	$68.00+
Accessible (Haz class 3, 4, 5 or 8), Domestic	$158.00+
Inaccessible (Haz class 6.1 or 9), International	$108.00+
Accessible (Haz class 3, 4, 5 or 8), International	$238.00+

An item is classified as a dangerous good if our website displays Hazardous Material (HazMat) information for it.

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*For research and further manufacturing use only, not for direct human use.

Structure of 153800-11-4

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Description

2-Ethynylpyrazine is a bench-stable, moisture-tolerant heteroaromatic building block featuring a terminal alkyne group at the 2-position of the pyrazine ring. This configuration enables efficient copper-catalyzed coupling reactions, facilitating rapid access to functionalized pyrazine derivatives for medicinal chemistry and materials science applications.

Application

2-Ethynylpyrazine serves as a versatile building block in synthetic organic chemistry, enabling palladium-catalyzed coupling reactions such as Sonogashira and Suzuki-Miyaura transformations. Its pyrazine core provides enhanced stability and favorable electronic properties for constructing heterocyclic frameworks. The terminal alkyne functionality offers high reactivity and compatibility with a range of functional groups, facilitating efficient access to complex scaffolds in medicinal chemistry and materials science applications.

General Information

CAS No. 153800-11-4
Cat. No. CS-0044099
Purity ≥98%
MDL No. None
Storage 4°C
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₆H₄N₂
Molecular Weight 104.11
Synonym(s) None
SMILES C#CC1=NC=CN=C1

Computational Chemistry Data

TPSA 25.78
LogP 0.4579
H_Acceptors 2
H_Donors 0
Rotatable_Bonds 0

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302-H315-H319-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501

Quality Control

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Other Classifications

Building Blocks Skeleton Aromatic heterocycle compounds Pyrazine compounds

Life Science Click Chemistry Reagents Alkyne

Chemical Biology Pharmaceutical Development and Drug Discovery Research Conjugation Chemistry/Click Chemistry Terminal Alkynes

Chemical Biology Conjugation Chemistry/Click Chemistry Terminal Alkynes

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2-Ethynylpyrazine

CAS No. 153800-11-4

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