Description

trans-2-Undecenal is a high-purity, unsaturated aliphatic aldehyde characterized by its distinctive fatty, waxy, and citrus-like odor profile. This compound is a key flavor and fragrance intermediate prized for its ability to impart fresh, green, and aldehydic notes to complex formulations. It is essential for manufacturers in the flavor and fragrance industry seeking to create or enhance profiles for personal care products, fine perfumery, and food flavorings.

Application

• Flavor & Fragrance Manufacturing: A crucial building block for creating fresh, green, waxy, and citrus nuances in perfumes, colognes, and scented consumer products.
• Food & Beverage Flavorings: Used as a synthetic flavoring agent to impart fatty, creamy, and citrus-like notes in various food products.
• Aroma Chemical Synthesis: Serves as a versatile intermediate in the synthesis of more complex fragrance molecules and specialty chemicals.
• Personal Care Products: Incorporated into soaps, detergents, lotions, and cosmetics to provide a fresh, clean, and natural olfactory character.
• Household & Industrial Fragrances: Used in air fresheners, cleaning agents, and other products requiring a fresh, aldehydic scent.
• Research & Development: Employed in analytical laboratories and R&D facilities for method development, reference standards, and chemical studies.

Basic Information

Product Name	trans-2-Undecenal
CAS No.	1337-83-3
Molecular Formula	C₁₁H₂₀O
Molecular Weight	168.28 g/mol
Synonyms	(E)-2-Undecenal; trans-2-Undecen-1-al; 2-Undecenal; (E)-2-Undecen-1-al; Undec-2-enal; 2-Undecenaldehyde; (E)-Undec-2-enal; FEMA 3423
EINECS	215-647-3

Quality Control

Our trans-2-Undecenal is produced and tested under a strict quality management system to ensure batch-to-batch consistency and high purity. Quality assurance includes rigorous analytical testing via GC, IR, and NMR to confirm identity and potency. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and conformance to specification is provided with each shipment. Our quality protocols are designed to meet the standards required by flavor, fragrance, and specialty chemical industries.

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 and should be kept under an inert atmosphere (e.g., nitrogen) when appropriate. Keep away from heat, sparks, and open flame. For long-term storage, consider refrigeration.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Odor	Characteristic fatty, waxy, 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.