Description

2-Penten-4-Ynal, 5-(1-Cyclopropen-1-Yl)-3-Methyl- (9Ci) is a specialized, high-purity organic building block featuring a unique conjugated system of aldehyde, alkene, and cyclopropene functional groups. This compound is valued for its role as a versatile and reactive intermediate in advanced organic synthesis, enabling the construction of complex molecular architectures. It is primarily sought by research chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors for applications in medicinal chemistry, ligand synthesis, and the development of novel polymers.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel active pharmaceutical ingredients (APIs) and bioactive molecules, particularly those requiring complex cyclic or strained ring systems.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, where its unique structure can contribute to novel modes of action.
• Material Science: Acts as a monomer or cross-linking agent in the research and production of specialty polymers and advanced organic electronic materials.
• Chemical Synthesis: Functions as a dienophile or dipolarophile in cycloaddition reactions (e.g., Diels-Alder) and as an electrophile in nucleophilic addition reactions for creating complex organic frameworks.
• Ligand and Catalyst Development: Employed in the design and synthesis of novel ligands for asymmetric catalysis and organometallic complexes.
• Flavor & Fragrance Chemistry: Investigated as a potential intermediate for synthesizing unique aroma compounds due to its unsaturated aldehyde structure.

Basic Information

Product Name	2-Penten-4-Ynal, 5-(1-Cyclopropen-1-Yl)-3-Methyl- (9Ci)
CAS No.	408524-38-9
Molecular Formula	C9H10O
Molecular Weight	134.18 g/mol
Synonyms	5-(1-Cyclopropen-1-yl)-3-methyl-2-penten-4-ynal; 3-Methyl-5-(cycloprop-1-en-1-yl)penta-2,4-dienal; 5-Cycloprop-1-en-1-yl-3-methylpenta-2,4-dienal
EINECS	Contact for details

Quality Control

Every batch of 2-Penten-4-Ynal, 5-(1-Cyclopropen-1-Yl)-3-Methyl- (9Ci) is manufactured and analyzed under strict quality management protocols to ensure consistency and purity for research and development applications. Our products undergo rigorous quality testing, including chromatographic purity analysis and structural confirmation. Certificates of Analysis (COA) detailing batch-specific results are available upon request to support your regulatory and quality assurance requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. For long-term stability, it is recommended to store under an inert atmosphere at temperatures between 2°C and 8°C. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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