Description

2-Pentynal Diethyl Acetal is a specialized acetal-protected alkyne aldehyde derivative, serving as a versatile and reactive synthetic intermediate. Its value lies in providing a masked aldehyde functionality that is stable to basic conditions, enabling selective transformations of the alkyne group. This compound is essential for researchers and manufacturers in pharmaceutical development, agrochemical synthesis, and advanced material science, where it is used to construct complex molecular architectures.

Application

• Pharmaceutical Intermediates: Key building block for the synthesis of active pharmaceutical ingredients (APIs), particularly those containing acetylenic and carbonyl motifs.
• Agrochemical Synthesis: Used in the production of advanced crop protection agents and herbicides.
• Organic Synthesis & Research: A valuable reagent for constructing complex organic molecules via Sonogashira coupling, nucleophilic addition, and other metal-catalyzed reactions.
• Material Science Precursor: Serves as a monomer or cross-linking agent in the development of specialty polymers and functional materials.
• Flavor & Fragrance Industry: Intermediate for the synthesis of specific aroma compounds.
• Chemical Biology Probes: Used in click chemistry applications and for labeling biomolecules due to its alkyne handle.

Basic Information

Product Name	2-Pentynal Diethyl Acetal
CAS No.	18229-77-1
Molecular Formula	C9H16O2
Molecular Weight	156.22 g/mol
Synonyms	1,1-Diethoxy-2-pentyn-1-ol; 2-Pentyn-1-al Diethyl Acetal; 2-Pentynal Diethyl Acetal; 1,1-Diethoxy-2-pentyne; Diethyl (2-pentynylidene) acetal; 2-Pentynal, diethyl acetal; 2-Pentyn-1-al, diethyl acetal
EINECS	Contact for details

Quality Control

Our 2-Pentynal Diethyl Acetal is produced under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity, identity, and consistency. Certificates of Analysis (COA) detailing specifications such as assay (by GC or HPLC), identity (IR, NMR), and impurity profiles are provided with every shipment to guarantee compliance with your research and production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated place at room temperature (15-25°C). Due to its highly volatile and light-sensitive nature, containers should be kept tightly sealed and away from heat and ignition sources.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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