Description

2-Butyne (CAS NO 503-17-3) is a highly reactive, linear alkyne compound that serves as a fundamental building block in organic synthesis. Its value lies in its terminal alkyne functionality, which enables a wide range of carbon-carbon bond-forming reactions, including Sonogashira coupling and metal acetylide formation. This makes it an essential intermediate for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries developing novel compounds and materials.

Application

• Organic Synthesis Intermediate: A key starting material for the synthesis of more complex molecules via coupling reactions, cycloadditions, and nucleophilic additions.
• Pharmaceutical Research: Used in the discovery and development of new active pharmaceutical ingredients (APIs) that require alkyne moieties for bioactivity or further functionalization.
• Agrochemical Production: Employed in creating advanced pesticides and herbicides where the alkyne group is integral to the molecule's mode of action.
• Material Science: Acts as a monomer or cross-linking agent in the development of specialized polymers and advanced materials with unique properties.
• Chemical Research & Development: Serves as a standard reagent in academic and industrial R&D labs for studying alkyne chemistry and developing new synthetic methodologies.
• Flavor & Fragrance Industry: Utilized in the synthesis of specific aroma chemicals and flavoring agents.

Basic Information

Product Name	2-Butyne
CAS No.	503-17-3
Molecular Formula	C4H6
Molecular Weight	54.09 g/mol
Synonyms	Dimethylacetylene; Crotonylene; But-2-yne; 2-Butyne; Dimethylethyne; 1,2-Dimethylethyne
EINECS	207-962-4

Quality Control

Our 2-Butyne is produced and handled under stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including gas chromatography (GC) for purity and identity confirmation, to ensure it meets exacting standards for research and industrial use. A detailed Certificate of Analysis (COA) is provided with each shipment, guaranteeing traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly volatile and gaseous nature under standard conditions, this product must be stored in a certified pressure-rated cylinder or appropriate containment system in a cool, well-ventilated area, away from heat, sparks, and open flames. Store separately from strong oxidizers and incompatible materials.

Specification

Item	Specification
Appearance	Colorless gas
Identification (IR)	Conforms
Purity (by GC)	≥ 98.0%
Water Content	≤ 0.1%

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