Description

1-Ethynyl-2,3-Dimethyl-Benzene is a specialized aromatic alkyne building block of significant interest in advanced organic synthesis. Its value lies in the unique reactivity of the ethynyl group, which enables efficient carbon-carbon bond formation for constructing complex molecular architectures. This compound is primarily needed by research chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for applications such as ligand synthesis and polymer modification.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the synthesis of active pharmaceutical ingredients (APIs), particularly for molecules requiring a rigid, conjugated aromatic core.
• Agrochemical Synthesis: Used in the research and development of novel pesticides and herbicides, where its structure can be incorporated to modify biological activity.
• Material Science Precursor: Acts as a monomer or cross-linking agent in the development of specialty polymers, resins, and advanced organic electronic materials.
• Ligand and Catalyst Development: Employed in organometallic chemistry to create sophisticated ligands for catalytic systems used in fine chemical manufacturing.
• Academic and Industrial Research: A valuable reagent for methodological studies in organic chemistry, including Sonogashira coupling and other palladium-catalyzed reactions.
• Fine Chemical Production: Utilized in the multi-step synthesis of dyes, flavors, fragrances, and other high-value specialty chemicals.

Basic Information

Product Name	1-Ethynyl-2,3-Dimethyl-Benzene
CAS No.	767-87-3
Molecular Formula	C10H10
Molecular Weight	130.19 g/mol
Synonyms	2,3-Dimethylphenylacetylene; 2,3-Dimethyl-1-ethynylbenzene; 1-Ethynyl-2,3-dimethylbenzene; o-Xylylene acetylene; (2,3-Dimethylphenyl)ethyne; 2,3-Dimethylbenzeneacetylene
EINECS	Contact for details

Quality Control

Our 1-Ethynyl-2,3-Dimethyl-Benzene is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and structural confirmation, to ensure it meets the high standards required for research and process chemistry. Certificates of Analysis (COA) detailing specific results are provided and available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated place, away from heat sources and incompatible materials. Due to its highly volatile nature, ensure containers are kept tightly sealed when not in use to prevent evaporation and potential concentration changes. Recommended storage temperature is 2-8°C for long-term stability.

Specification

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