Description

4-Cyano-1-Butyne is a versatile alkyne derivative featuring both a terminal alkyne and a nitrile functional group, making it a valuable bifunctional building block in advanced organic synthesis. This compound is essential for researchers and manufacturers requiring precise molecular scaffolds for constructing complex heterocycles and pharmaceutical intermediates. It is particularly critical for the development of active pharmaceutical ingredients (APIs), agrochemicals, and specialty polymers, serving industries focused on innovation and high-value chemical production.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex heterocyclic compounds and targeted small molecule APIs.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and plant growth regulators.
• Material Science: Serves as a monomer or cross-linking agent in the production of specialty polymers and advanced resins.
• Ligand & Catalyst Development: Employed in the creation of novel ligands for transition metal catalysis and organometallic chemistry.
• Chemical Biology & Proteomics: Utilized in click chemistry applications, such as Huisgen cycloaddition, for bioconjugation and probe synthesis.
• Organic Electronic Materials: Acts as a building block for conjugated molecular systems used in OLEDs and semiconductors.

Basic Information

Product Name	4-Cyano-1-Butyne
CAS No.	19596-07-7
Molecular Formula	C5H5N
Molecular Weight	79.10 g/mol
Synonyms	1-Butyne-4-carbonitrile; 4-Cyanobutyne; 4-Cyano-1-butyne; 3-Butynenitrile; Pent-4-ynenitrile; 4-Cyanobut-1-yne; But-1-yne-4-carbonitrile; 1-Cyano-3-butyne
EINECS	243-189-0

Quality Control

Our 4-Cyano-1-Butyne is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography (HPLC/GC) and spectroscopic methods (IR, NMR), to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment. We adhere to cGMP principles where applicable to support our customers in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep away from heat, sparks, open flames, and incompatible materials such as strong oxidizing agents and strong bases. The container should be kept tightly sealed in a dry environment to minimize moisture uptake and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/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.