Description

Trans,trans-2,4-Undecadienal is a high-purity, unsaturated aliphatic aldehyde characterized by its distinctive fatty, waxy, and citrus-like aroma. This compound is a key flavor and fragrance intermediate prized for its ability to impart natural, green, and fatty nuances to complex formulations. It is essential for manufacturers in the flavor and fragrance industry seeking to create authentic profiles for food, beverage, and personal care products. Our supply ensures consistent quality and reliable availability for global production needs.

Application

• Flavor & Fragrance (F&F) Industry: A primary building block for synthesizing natural-tasting flavors (e.g., citrus, melon, fatty notes) and fragrances with green, waxy, or aldehydic characteristics.
• Food & Beverage Flavors: Used in the creation of flavorings for candies, beverages, dairy products, and savory applications where a fatty, creamy, or citrus undertone is desired.
• Perfumery & Cosmetics: Incorporated into fine fragrances, soaps, detergents, and cosmetic products to add depth and natural complexity to scent profiles.
• Aroma Chemical Synthesis: Serves as a crucial intermediate or starting material in the multi-step synthesis of more complex aroma chemicals.
• Research & Development: Utilized in analytical chemistry as a reference standard and in R&D for studying flavor chemistry, olfactory receptors, and new compound development.

Basic Information

Product Name	Trans,trans-2,4-Undecadienal
CAS No.	13162-46-4
Molecular Formula	C₁₁H₁₈O
Molecular Weight	166.26 g/mol
Synonyms	(2E,4E)-2,4-Undecadienal; 2,4-Undecadienal, (E,E)-; (E,E)-2,4-Undecadienal; trans,trans-2,4-Hendecadienal; FEMA 3422; Undeca-2,4-dienal; Flavor ingredient 2,4-Undecadienal
EINECS	236-122-1

Quality Control

Our Trans,trans-2,4-Undecadienal is produced and tested under a strict quality management system. Each batch is analyzed to ensure it meets stringent specifications for identity, purity, and olfactory profile, suitable for flavor and fragrance applications. A comprehensive Certificate of Analysis (COA) detailing purity (by GC), isomer content, and other critical parameters is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). This product is easily oxidized and should be handled under an inert atmosphere when appropriate. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 95.0%
Isomer Content (trans,trans)	≥ 90.0%
Refractive Index (20°C)	1.470 - 1.480
Specific Gravity (20/20°C)	0.860 - 0.880

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