Description

Phenylpropiolic Acid is a versatile organic building block characterized by its acetylene and carboxylic acid functional groups. This compound is valued for its role as a key synthetic intermediate in the production of fine chemicals and active pharmaceutical ingredients (APIs). It is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors seeking to develop novel compounds through cross-coupling and cyclization reactions.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of various drug molecules and bioactive compounds.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and plant growth regulators.
• Liquid Crystal & OLED Materials: Serves as a building block for advanced organic electronic materials due to its rigid, conjugated structure.
• Organic Synthesis & Research: Employed in Sonogashira coupling, click chemistry, and other metal-catalyzed reactions to construct complex molecular architectures.
• Dye & Pigment Manufacturing: Acts as an intermediate in the production of specialized dyes and pigments.
• Polymer Modification: Used to introduce acetylene functionality into polymers for further cross-linking or functionalization.

Basic Information

Product Name	Phenylpropiolic Acid
CAS No.	637-44-5
Molecular Formula	C9H6O2
Molecular Weight	146.14 g/mol
Synonyms	3-Phenylpropiolic Acid; Phenylacetylene carboxylic acid; Benzeneacetic acid, 2-propynoic acid; 2-Propynoic acid, 3-phenyl-; PPA; Phenylpropiolic acid; 3-Phenyl-2-propynoic acid
EINECS	211-295-5

Quality Control

Our Phenylpropiolic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets the high standards required for research and industrial synthesis. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability and consistent quality.

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 oxidizers, bases, and sources of ignition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	136 - 140 °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.