Description

Sodium 4-Pentynoate is the sodium salt of 4-pentynoic acid, a versatile alkyne-containing building block. This compound is valued for its terminal alkyne functionality, which enables critical carbon-carbon bond-forming reactions like the copper-catalyzed azide-alkyne cycloaddition (CuAAC). It is primarily sought by researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for use in medicinal chemistry, material science, and as a key synthetic intermediate.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates, particularly for introducing alkyne "click chemistry" handles.
• Agrochemical Synthesis: Used in the research and development of novel pesticides, herbicides, and plant growth regulators.
• Material Science & Polymer Chemistry: Acts as a monomer or functionalization agent for creating advanced polymers, coatings, and functional materials with tailored properties.
• Bioconjugation & Probe Development: Enables the labeling of biomolecules (proteins, nucleic acids) for diagnostic assays, imaging probes, and biochemical research via click chemistry.
• Organic Synthesis & Chemical Research: A fundamental reagent for constructing complex molecular architectures in academic and industrial R&D settings.
• Ligand & Catalyst Development: Used in the preparation of specialized ligands and organometallic catalysts for asymmetric synthesis and other catalytic processes.

Basic Information

Item	Details
Product Name	Sodium 4-Pentynoate
CAS No.	101917-30-0
Molecular Formula	C5H5NaO2
Molecular Weight	120.08 g/mol
Synonyms	Sodium 4-Pentynoate; Sodium Pent-4-ynoate; 4-Pentynoic Acid Sodium Salt; Sodium 4-Pentyn-1-oate; Pent-4-ynoic Acid Sodium Salt; Sodium 2-Propynylacetate; Sodium But-3-ynoate (common misnomer); Sodium 3-Butynoate (common misnomer)
EINECS	Contact for details

Quality Control

Our Sodium 4-Pentynoate is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the high standards required for research and synthesis. A detailed Certificate of Analysis (COA) 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 room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under an inert atmosphere (e.g., nitrogen or argon) in a desiccator for long-term storage to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95%
Water Content (KF)	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm

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