Description

1-Penten-4-Yn-3-Ol, 5-(1-Methylcyclopropyl)- (9Ci) is a specialized alkenyl and alkynyl-substituted alcohol, a high-purity intermediate of significant interest in advanced organic synthesis. Its unique structure, featuring both a terminal alkyne and an alkene group adjacent to a hydroxyl, makes it a valuable and versatile building block for constructing complex molecular architectures. This compound is primarily sought after by research chemists and process development scientists in the pharmaceutical and agrochemical sectors for applications in medicinal chemistry, cross-coupling reactions, and the synthesis of novel bioactive compounds.

Application

• Pharmaceutical Intermediate: A key synthon for the development of new active pharmaceutical ingredients (APIs), particularly in creating molecules with cyclopropyl and unsaturated carbon chains.
• Agrochemical Synthesis: Used in research for constructing novel herbicides, fungicides, and insecticides that require specific stereochemistry and functional group arrays.
• Material Science Research: Serves as a monomer or precursor in the development of specialty polymers and advanced organic materials with tailored properties.
• Cross-Coupling Reactions: The terminal alkyne group is highly reactive in Sonogashira, Glaser, and other metal-catalyzed coupling reactions to form conjugated systems.
• Medicinal Chemistry & Drug Discovery: Employed in fragment-based drug design and combinatorial chemistry libraries to explore new chemical space and biological activity.
• Academic & Industrial R&D: A crucial reagent for methodological development in organic synthesis and catalysis studies within university and corporate laboratories.

Basic Information

Product Name	1-Penten-4-Yn-3-Ol, 5-(1-Methylcyclopropyl)- (9Ci)
CAS No.	123926-55-6
Molecular Formula	C9H12O
Molecular Weight	136.19 g/mol
Synonyms	5-(1-Methylcyclopropyl)-1-penten-4-yn-3-ol; 5-(1-Methylcyclopropyl)pent-1-en-4-yn-3-ol; 1-Penten-4-yn-3-ol, 5-(1-methylcyclopropyl)-; 5-(1-Methylcyclopropyl)-1-penten-4-yn-3-ol (9CI)
EINECS	Contact for details

Quality Control

We supply 1-Penten-4-Yn-3-Ol, 5-(1-Methylcyclopropyl)- (9Ci) in high-purity grades suitable for demanding research and development applications. Every batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing specific results is provided with each shipment, supporting your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). This compound may be sensitive to prolonged exposure to air and moisture; it is recommended to store under an inert atmosphere for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥95% (Research Grade)
Water Content (KF)	≤0.5%

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