Description

5-Methyl-2-Hepten-4-One is a specialized organic ketone with a distinctive unsaturated carbon chain, offering unique reactivity and flavor/fragrance characteristics. This compound is valued for its role as a versatile chemical intermediate and as a contributor to complex organoleptic profiles in high-value formulations. It is primarily sought by manufacturers in the flavor & fragrance, pharmaceutical, and fine chemical synthesis industries for creating sophisticated products.

Application

• Flavor & Fragrance Industry: Used as a key intermediate or a character-impact component in the synthesis of complex aroma chemicals, contributing to fruity, green, or woody notes in perfumes, cosmetics, and food flavorings.
• Pharmaceutical Intermediates: Serves as a crucial building block in the multi-step synthesis of active pharmaceutical ingredients (APIs) and other bioactive molecules, leveraging its reactive ketone and alkene functional groups.
• Organic Synthesis & Research: Acts as a versatile starting material or reagent in academic and industrial research laboratories for developing novel compounds, catalysts, and studying reaction mechanisms.
• Agrochemical Synthesis: Employed in the production pathway for certain advanced pesticides and herbicides, where its specific carbon skeleton is incorporated into the final active ingredient.
• Specialty Chemicals: Utilized in the manufacture of performance chemicals, such as certain polymer additives or corrosion inhibitors, where its chemical structure imparts specific desired properties.

Basic Information

Product Name	5-Methyl-2-Hepten-4-One
CAS No.	81925-81-7
Molecular Formula	C8H14O
Molecular Weight	126.20 g/mol
Synonyms	5-Methylhept-2-en-4-one; 2-Hepten-4-one, 5-methyl-; 5-Methyl-2-hepten-4-on; FEMA 3761; (E/Z)-5-Methyl-2-hepten-4-one; Unsaturated methyl ketone
EINECS	Contact for details

Quality Control

We maintain a strict quality management system aligned with cGMP principles to ensure batch-to-batch consistency and purity. Every lot of 5-Methyl-2-Hepten-4-One is analyzed using advanced techniques including GC, GC-MS, and NMR to verify identity, purity, and the absence of critical impurities. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0% (sum of isomers)
Specific Gravity (20°C)	0.840 - 0.860
Refractive Index (20°C)	1.430 - 1.450
Related Substances (GC)	Individual impurity ≤ 1.0%; Total impurities ≤ 3.0%
Water Content (KF)	≤ 0.5%

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