Description

trans-2-Undecenal is a high-purity, unsaturated aliphatic aldehyde characterized by its distinct, powerful, and waxy-fatty odor profile. This compound is a key flavor and fragrance intermediate valued for its ability to impart green, citrusy, and fatty nuances to complex formulations. It is essential for manufacturers in the flavor and fragrance industry seeking to create authentic, high-impact sensory experiences. The product is supplied to meet the stringent quality requirements of global B2B customers.

Application

• Flavor & Fragrance (F&F) Industry: A crucial building block for creating and enhancing flavors with fatty, waxy, green, and citrus notes, such as in orange, mandarin, and other fruit flavor systems.
• Perfumery: Used as a top or middle note in fine fragrances, soaps, and detergents to add fresh, aldehydic, and slightly metallic green accents.
• Food & Beverage Flavors: Employed in the synthesis of flavorings for candies, beverages, and dairy products where a fresh, fatty character is desired.
• Aroma Chemical Synthesis: Serves as a versatile chemical intermediate for the production of more complex aroma chemicals through reactions like reduction, oxidation, or condensation.
• Household & Industrial Products: Incorporated into air fresheners, cleaning agents, and personal care products to provide a clean, fresh scent profile.

Basic Information

Product Name	trans-2-Undecenal
CAS No.	53448-07-0
Molecular Formula	C₁₁H₂₀O
Molecular Weight	168.28 g/mol
Synonyms	(E)-2-Undecenal; trans-2-Undecen-1-al; 2-Undecenal; (E)-Undec-2-enal; Undecylenic aldehyde; 2-Undecen-1-al; FEMA 3423
EINECS	258-555-0

Quality Control

Our trans-2-Undecenal is produced and tested under a strict quality management system to ensure batch-to-batch consistency and purity. We adhere to relevant industry standards for flavor and fragrance ingredients. A comprehensive Certificate of Analysis (COA) is provided with each shipment, detailing key parameters such as identity, assay, and impurity profile to guarantee it meets your specific application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15-25°C (59-77°F). This product is easily oxidized and should be kept under an inert atmosphere (e.g., nitrogen) after opening to maintain stability and prevent degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0%
Odor	Characteristic, fatty, green, citrus
Refractive Index (20°C)	1.440 - 1.450
Specific Gravity (20/20°C)	0.840 - 0.850

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