Description

(E)-3,4,5,6,6-Pentamethylhept-3-En-2-One is a high-purity, branched-chain ketone with a unique sterically hindered structure. This compound matters as a versatile chemical intermediate and fragrance ingredient, valued for its ability to impart specific olfactory characteristics and serve as a building block for more complex molecules. Industries that need it include fine chemical synthesis, flavor & fragrance (F&F) manufacturing, and advanced material research.

Application

• Fragrance and Flavor Ingredient: Used as a key component in the synthesis of woody, amber, and musky fragrance notes for perfumes, cosmetics, and personal care products.
• Chemical Intermediate: Serves as a crucial building block in organic synthesis for pharmaceuticals, agrochemicals, and specialty chemicals due to its reactive carbonyl group and hindered alkene.
• Research & Development: Employed in academic and industrial R&D for studying reaction mechanisms, catalysis, and developing novel organic compounds.
• Polymer Modification: Acts as a modifier or cross-linking agent in the production of specialty polymers and resins to alter physical properties.
• Solvent for Specialty Applications: Utilized as a solvent for specific high-value coatings, inks, or cleaning formulations where its unique properties are advantageous.

Basic Information

Product Name	(E)-3,4,5,6,6-Pentamethylhept-3-En-2-One
CAS No.	81786-74-5
Molecular Formula	C12H22O
Molecular Weight	182.30 g/mol
Synonyms	3,4,5,6,6-Pentamethyl-3-hepten-2-one; (E)-3,4,5,6,6-Pentamethyl-3-hepten-2-one; 3-Hepten-2-one, 3,4,5,6,6-pentamethyl-, (3E)-; Isobutyl isopropyl ketone (derivative); Tetramethylheptenone; Pentamethylheptenone; Givescone; Timberone (trade name related to fragrance use).
EINECS	Contact for details

Quality Control

Our (E)-3,4,5,6,6-Pentamethylhept-3-En-2-One is produced under a strict quality management system. Every batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical specifications are available upon request 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 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 purity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0% (Area %)
Isomeric Purity (E-isomer)	≥ 95.0%
Refractive Index (20°C)	1.450 - 1.460
Specific Gravity (20/20°C)	0.850 - 0.870

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