Description

4-Ethynyl-2-Methyl-Phenol is a versatile phenolic compound featuring both a hydroxyl and an ethynyl functional group, making it a valuable building block in advanced organic synthesis. Its unique structure is critical for constructing complex molecular architectures, particularly in the development of specialty polymers and pharmaceutical intermediates. This high-purity chemical is essential for research and production in fine chemical, agrochemical, and material science industries where precise molecular control is required.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of active pharmaceutical ingredients (APIs) and novel drug candidates.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and plant growth regulators.
• Polymer & Material Science: Acts as a monomer or cross-linking agent for creating specialty resins, high-performance polymers, and advanced composite materials.
• Ligand & Catalyst Development: Employed in organometallic chemistry to create novel ligands for catalytic systems.
• Chemical Research: A valuable reagent in academic and industrial R&D for exploring new organic reactions and synthesizing complex molecules.
• Electronic Chemicals: Investigated for use in the synthesis of organic semiconductors and electronic materials.

Basic Information

Product Name	4-Ethynyl-2-Methyl-Phenol
CAS No.	99595-76-3
Molecular Formula	C9H8O
Molecular Weight	132.16 g/mol
Synonyms	2-Methyl-4-ethynylphenol; 4-Ethynyl-2-methylphenol; 4-Ethynyl-o-cresol; 2-Hydroxy-5-methylphenylacetylene; 2-Methyl-4-(ethynyl)phenol; Phenol, 4-ethynyl-2-methyl-; 5-Methyl-2-(ethynyl)phenol
EINECS	Contact for details

Quality Control

Our 4-Ethynyl-2-Methyl-Phenol is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. We employ advanced analytical techniques, including HPLC, GC, and NMR, to verify identity and quantify impurities. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents. Due to the phenolic and ethynyl functional groups, this material should be considered moisture-sensitive and handled under an inert atmosphere for long-term storage to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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