Description

Benzene, 1-Methyl-4-(1-Propynyl)- (9Ci) CAS NO 2749-93-1 is a specialized aromatic compound featuring a methyl and a propynyl substituent on the benzene ring, making it a valuable intermediate in advanced organic synthesis. Its unique structure provides a versatile chemical handle for constructing complex molecules, particularly in the development of pharmaceuticals and functional materials. This compound is essential for research chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors seeking to introduce specific functional groups or create novel molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs), especially those requiring a substituted benzene core with alkyne functionality for further derivatization.
• Agrochemical Synthesis: Used in the research and production of advanced crop protection agents, where its structure can be incorporated into novel herbicides, fungicides, or insecticides.
• Material Science Research: Acts as a monomer or precursor in the development of specialty polymers, liquid crystals, or organic electronic materials due to its aromatic and alkyne groups.
• Organic Synthesis Reagent: Employed in academic and industrial R&D laboratories for cross-coupling reactions (e.g., Sonogashira, Heck) and as a scaffold for creating complex organic molecules.
• Fine Chemical Production: Utilized in the manufacture of dyes, pigments, and other performance chemicals where specific substitution patterns are required.

Basic Information

Product Name	Benzene, 1-Methyl-4-(1-Propynyl)- (9Ci)
CAS No.	2749-93-1
Molecular Formula	C10H10
Molecular Weight	130.19 g/mol
Synonyms	1-Methyl-4-(prop-1-yn-1-yl)benzene; p-Methylphenylacetylene; 4-Methylphenylacetylene; 1-Methyl-4-(1-propynyl)benzene; 4-Ethynyltoluene; p-Tolylacetylene; (4-Methylphenyl)ethyne; 4-Methylphenylethyne
EINECS	Contact for details

Quality Control

Our Benzene, 1-Methyl-4-(1-Propynyl)- is produced under strict quality management systems to ensure batch-to-batch consistency and high purity for research and industrial use. Each lot undergoes comprehensive analysis, including identity confirmation by spectroscopic methods and purity assessment by chromatography. Certificates of Analysis (COA) documenting all critical quality parameters are 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, dry, well-ventilated area away from heat sources and incompatible materials. For long-term storage, maintaining the container under an inert atmosphere (e.g., nitrogen or argon) is recommended to preserve stability.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (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.