Description

(4-Hydroxy-Phenyl)-Propynoic Acid is a specialized organic compound featuring a phenolic hydroxyl group conjugated with a propynoic acid moiety. This unique structure makes it a valuable chemical intermediate and building block for synthesizing more complex molecules in advanced research and manufacturing. It is primarily sought after by pharmaceutical, agrochemical, and fine chemical industries for applications in drug discovery and the development of functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those with targeted biological activity.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and plant growth regulators.
• Liquid Crystal & OLED Materials: Serves as a building block for advanced organic electronic materials due to its conjugated system.
• Polymer Modification: Employed to introduce functional phenolic and alkyne groups into polymer chains for enhanced properties.
• Chemical Research: A versatile reagent in organic synthesis for constructing complex molecular architectures via click chemistry and other coupling reactions.
• Dye & Pigment Intermediate: Used in the development of specialized dyes and pigments where lightfastness and specific chromophores are required.

Basic Information

Product Name	(4-Hydroxy-Phenyl)-Propynoic Acid
CAS No.	78589-65-8
Molecular Formula	C9H6O3
Molecular Weight	162.14 g/mol
Synonyms	4-Hydroxyphenylpropynoic Acid; 3-(4-Hydroxyphenyl)propynoic Acid; 4-Hydroxybenzene-1-propyonic Acid; p-Hydroxyphenylpropynoic Acid; 3-(p-Hydroxyphenyl)propiolic Acid; 4-Hydroxy-1-propyonic acid benzene; (4-Hydroxyphenyl)propiolic Acid; 78589-65-8
EINECS	Contact for details

Quality Control

Our (4-Hydroxy-Phenyl)-Propynoic Acid is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents, strong bases, and strong acids.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%

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