Description

4-Penten-2-One, 4-Methyl- is a versatile, highly volatile ketone building block with a reactive terminal alkene group, making it a valuable intermediate in organic synthesis. Its unique structure enables its use in a variety of chemical transformations, including cycloadditions, conjugate additions, and polymerizations. This compound is primarily sought by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for constructing complex molecular frameworks.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the synthesis of active pharmaceutical ingredients (APIs), particularly for constructing five- and six-membered rings via intramolecular cyclizations.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides, where its reactive alkene and ketone functionalities allow for the introduction of specific side chains and heterocycles.
• Flavor & Fragrance Ingredient: Acts as a precursor for musk-like odorants and other specialty aroma chemicals due to its methyl-substituted pentenone backbone.
• Polymer & Resin Chemistry: Functions as a co-monomer or cross-linking agent in specialty polymer formulations, contributing to specific material properties.
• Organic Synthesis Reagent: Employed in academic and industrial research for Michael addition reactions, Diels-Alder reactions, and other carbon-carbon bond-forming processes.
• Chemical Research & Development: A fundamental building block for exploring new synthetic methodologies and creating novel chemical entities in R&D laboratories.

Basic Information

Product Name	4-Penten-2-One, 4-Methyl-
CAS No.	3744-02-3
Molecular Formula	C6H10O
Molecular Weight	98.14 g/mol
Synonyms	4-Methyl-4-penten-2-one; 4-Methylpent-4-en-2-one; Isopropenyl acetone; 4-Methyl-1-penten-3-one; 2-Methyl-2-butene-4-one; Isopropenylacetone; 4-Methyl-4-penten-2-on; 4-Methylpent-4-ene-2-one
EINECS	223-130-8

Quality Control

Our 4-Penten-2-One, 4-Methyl- is produced and handled under a strict quality management system. Each batch undergoes comprehensive analytical testing, including GC, IR, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We can supply material meeting various purity grades, including standard technical and high-purity research grades, to suit your specific application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials. Due to its high volatility, ensure containers are kept tightly sealed when not in use. Recommended storage temperature is 2-8°C for long-term stability, though short-term storage at controlled room temperature (15-25°C) is acceptable.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	1.422 - 1.426
Density (20°C)	0.850 - 0.860 g/mL

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