Description

(2E,4E)-2,4-Octadienal CAS NO 30361-28-5 is a high-purity, conjugated unsaturated aldehyde characterized by its distinctive fatty, green, and cucumber-like aroma. This compound serves as a key flavor and fragrance intermediate, prized for its potent organoleptic properties and versatility in synthetic chemistry. It is essential for manufacturers in the flavor & fragrance (F&F), food additive, and fine chemical synthesis industries seeking to create complex sensory profiles or specific molecular building blocks.

Application

• Flavor & Fragrance (F&F) Industry: A primary component for creating and enhancing natural-tasting green, fatty, and cucumber notes in food flavors, beverages, and perfumery.
• Food Additives: Used as a synthetic flavoring agent to impart or reinforce specific taste profiles in processed foods and snacks.
• Fine Chemical Synthesis: Acts as a valuable diene in Diels-Alder reactions and a versatile electrophile for synthesizing more complex aroma chemicals and pharmaceutical intermediates.
• Research & Development: Serves as a reference standard and a key reagent in organic chemistry research, particularly in studies involving conjugated systems and aldehydes.
• Cosmetics and Personal Care: Incorporated as a fragrance ingredient in soaps, lotions, and other scented consumer products.

Basic Information

Product Name	(2E,4E)-2,4-Octadienal
CAS No.	30361-28-5
Molecular Formula	C₈H₁₂O
Molecular Weight	124.18 g/mol
Synonyms	trans,trans-2,4-Octadienal; (E,E)-2,4-Octadienal; 2,4-Octadienal, (2E,4E)-; 2-trans,4-trans-Octadienal; FEMA 3721; Octadienal; Leaf aldehyde (isomer)
EINECS	250-146-5

Quality Control

Our (2E,4E)-2,4-Octadienal is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to ensure identity, purity, and consistency. We provide Certificates of Analysis (COA) with every shipment, detailing all relevant specifications. Our quality commitment aligns with ISO standards and meets the requirements of the Flavor and Extract Manufacturers Association (FEMA) and other relevant regulatory bodies for its intended applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is easily oxidized; for long-term storage, consider keeping under an inert atmosphere such as nitrogen. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0%
Isomeric Purity ((2E,4E)-Isomer)	≥ 95.0%
Refractive Index (20°C)	1.500 - 1.510
Specific Gravity (20/20°C)	0.870 - 0.890

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