Description

4-Penten-2-One, 3,4-Dimethyl- (6Ci,7Ci,9Ci) is a specialized, high-purity unsaturated ketone building block with the CAS number 54678-04-5. This compound is valued for its reactive α,β-unsaturated carbonyl system, making it a versatile intermediate for synthesizing complex molecules in fine chemical and pharmaceutical research. It is primarily sought by R&D chemists and process development scientists working in advanced organic synthesis, agrochemical development, and fragrance chemistry.

Application

• As a key Michael acceptor in organic synthesis for carbon-carbon bond formation.
• Intermediate in the research and development of pharmaceutical active ingredients and bioactive molecules.
• Building block for synthesizing flavor and fragrance compounds, contributing to complex scent profiles.
• Precursor in the development of agrochemicals, including pesticides and herbicides.
• Used in material science research for creating novel polymers or functionalized materials.
• Starting material for heterocyclic compound synthesis, such as pyrroles and furans.

Basic Information

Product Name	4-Penten-2-One, 3,4-Dimethyl- (6Ci,7Ci,9Ci)
CAS No.	54678-04-5
Molecular Formula	C7H12O
Molecular Weight	112.17 g/mol
Synonyms	3,4-Dimethyl-4-penten-2-one; 3,4-Dimethylpent-4-en-2-one; 4-Penten-2-one, 3,4-dimethyl-; 3-Methyl-2-butenyl methyl ketone; 1-Methyl-1-buten-3-one, 2-methyl-; (CH3)2C=CHC(O)CH3 (simplified representation)
EINECS	Contact for details

Quality Control

Our 4-Penten-2-One, 3,4-Dimethyl- is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to ensure high purity and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications. We support custom synthesis and can tailor purity grades to meet specific research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its properties of being easily oxidized, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep away from heat, sparks, open flames, and strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.430 - 1.440
Density (20°C)	0.85 - 0.87 g/mL

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