Description

Epoxy-2-Undecenal, specifically (E)-4,5-Epoxy-(E)-2-Undecenal, is a high-value, unsaturated aliphatic aldehyde characterized by its epoxy and aldehyde functional groups. This compound is prized for its potent, complex aroma profile, making it a critical ingredient in the creation of sophisticated fragrance and flavor formulations. It is an essential building block for perfumers and flavorists seeking to impart unique green, waxy, and metallic nuances with significant olfactory impact. The CAS number for this compound is 134346-43-3.

Application

This specialty aldehyde finds its primary use in industries where nuanced aroma and taste are paramount. Its applications include:

• Fine Fragrance Creation: Used as a key top or middle note to add modern, green, and metallic accents to perfumes for personal care and luxury goods.
• Flavor Enhancement: Employed in trace amounts to replicate or enhance natural flavors, particularly in beverages, confectionery, and dairy products, contributing to a fresh, waxy character.
• Functional Fragrances: Incorporated into air care products, detergents, and household cleaners to provide a clean, sophisticated scent profile that differentiates consumer products.
• Aroma Chemical Synthesis: Serves as a valuable intermediate for the synthesis of more complex fragrance molecules and aroma chemicals.
• Cosmetic Formulations: Used in premium skincare and haircare products where a distinctive and lasting fragrance is a key selling point.

Basic Information

Product Name	Epoxy-2-Undecenal, (E)-4,5-Epoxy-(E)-2-Undecenal
CAS No.	134346-43-3
Molecular Formula	C₁₁H₁₈O₂
Molecular Weight	182.26 g/mol
Synonyms	(E)-4,5-Epoxy-2-undecenal; 4,5-Epoxy-2-undecenal; trans-4,5-Epoxy-trans-2-undecenal; 2-Undecenal, 4,5-epoxy-, (E,E)-; Flavor and Fragrance Material FEMA 4917; (2E,4E)-4,5-Epoxyundec-2-enal
EINECS	Contact for details

Quality Control

Our Epoxy-2-Undecenal is produced and controlled under a strict quality management system to ensure batch-to-batch consistency and purity required for sensitive fragrance and flavor applications. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as identity, assay, and impurity profiles. Our quality protocols are designed to meet the stringent standards of the flavor and fragrance industry, including compliance with FEMA GRAS and IFRA guidelines where applicable.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). This material is easily oxidized (store under inert atmosphere) and light-sensitive (store away from light). Keep away from strong oxidizing agents, strong acids, and strong bases. Under these conditions, the product remains stable for the period indicated on the label.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0%
Refractive Index (20°C)	1.460 - 1.470
Specific Gravity (20/20°C)	0.920 - 0.940
Related Substances (GC)	Total impurities ≤ 3.0%

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