Description

Pyridazine, 4-Ethynyl- is a high-value, heterocyclic building block featuring a pyridazine core functionalized with a terminal ethynyl group. This unique structure makes it a critical intermediate for synthesizing complex molecules in advanced research and development. It is primarily sought after by pharmaceutical and agrochemical researchers for constructing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in kinase inhibitor and other targeted therapy research.
• Agrochemical Development: Used in creating advanced active ingredients for crop protection products.
• Material Science Research: Serves as a precursor for functional organic materials, including organic semiconductors and metal-organic frameworks (MOFs).
• Chemical Biology & Proteomics: Employed as a click chemistry handle (via the ethynyl group) for bioconjugation and probe development.
• Ligand Synthesis: Used to prepare specialized ligands for catalysis and coordination chemistry.
• Academic & Contract Research: Essential reagent for synthetic organic chemistry research in academic and industrial R&D laboratories.

Basic Information

Product Name	Pyridazine, 4-Ethynyl-
CAS No.	1204333-38-9
Molecular Formula	C6H4N2
Molecular Weight	104.11 g/mol
Synonyms	4-Ethynylpyridazine; 4-Ethynyl-1,2-diazine; 1,2-Diazine, 4-ethynyl-; 4-Pyridazineacetylene; 4-Ethynyl-1,2-diazabenzene; Building block 1204333-38-9
EINECS	Contact for details

Quality Control

Our Pyridazine, 4-Ethynyl- is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and GC-MS, to ensure high purity and batch-to-batch consistency. Certificates of Analysis (COA) with detailed specifications are provided for every shipment, supporting your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This compound is light-sensitive and should be handled under an inert atmosphere when appropriate for prolonged use.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.