Description

5-Hydroxypent-2-Ynoic Acid is a bifunctional organic compound featuring both a terminal alkyne and a carboxylic acid group, separated by a hydroxylated carbon chain. This unique structure makes it a valuable versatile building block for the synthesis of complex molecules, particularly in pharmaceutical and fine chemical research. It is primarily sought by R&D chemists and process development scientists working on novel active pharmaceutical ingredients (APIs), agrochemicals, and advanced material precursors.

Application

• Pharmaceutical Intermediate: Key synthon for constructing heterocyclic compounds and complex molecular scaffolds in drug discovery programs.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and plant growth regulators.
• Polymer Chemistry: Serves as a monomer or cross-linking agent for creating specialty polymers with tailored properties.
• Bioconjugation & Probe Development: The alkyne group is utilized in click chemistry reactions for labeling biomolecules or creating diagnostic probes.
• Ligand & Catalyst Design: Useful for synthesizing novel chelating ligands and organometallic catalysts.
• Fine Chemical Production: Employed in the multi-step synthesis of flavors, fragrances, and other high-value specialty chemicals.

Basic Information

Product Name	5-Hydroxypent-2-Ynoic Acid
CAS No.	54620-70-1
Molecular Formula	C5H6O3
Molecular Weight	114.10 g/mol
Synonyms	5-Hydroxypent-2-ynoic acid; 2-Pentynoic acid, 5-hydroxy-; 5-Hydroxy-2-pentynoic acid; 5-Hydroxypent-2-ynoic Acid; 2-Pentynoic acid, 5-hydroxy- (9CI); 5-Hydroxy-2-pentynoate
EINECS	Contact for details

Quality Control

Our 5-Hydroxypent-2-Ynoic Acid is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and spectroscopic identification (IR, NMR), to ensure it meets high-purity standards suitable for research and development. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed and under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Melting Point	Contact for details

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