Description

3-(4-Methoxyphenyl)-2-Propynoic Acid (Saltdata: Free) is a high-purity organic building block featuring a propiolic acid core substituted with a methoxyphenyl group. This compound is valued for its role as a versatile synthetic intermediate in advanced organic synthesis and pharmaceutical research. It is primarily sought after by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Key building block for 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.
• Fine Chemical Production: Serves as a precursor for dyes, pigments, and specialty polymers requiring specific aromatic-acetylene functionalities.
• Academic & Industrial R&D: Employed in methodological studies, such as click chemistry, Sonogashira couplings, and other alkyne-based transformations.
• Material Science Research: Investigated as a monomer or cross-linking agent for advanced polymeric materials with tailored properties.

Basic Information

Product Name	3-(4-Methoxyphenyl)-2-Propynoic Acid (Saltdata: Free)
CAS No.	2227-57-8
Molecular Formula	C10H8O3
Molecular Weight	176.17 g/mol
Synonyms	4-Methoxyphenylpropiolic Acid; p-Methoxyphenylpropiolic Acid; 3-(4-Methoxyphenyl)propynoic Acid; (4-Methoxyphenyl)propiolic Acid; 2227-57-8; NSC 403697; CCRIS 5986
EINECS	218-767-7

Quality Control

Our 3-(4-Methoxyphenyl)-2-Propynoic Acid is manufactured under strict quality management systems. Each batch is subjected to comprehensive analytical testing, including HPLC, NMR, and FTIR, to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with customer specifications and relevant industry standards for research and industrial use.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong acids and incompatible materials such as strong oxidizing agents and bases. For long-term storage, consider under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥ 98.0%
Melting Point	158°C - 162°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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