Description

(E,Z)-2,4-Nonadienal is a high-purity, unsaturated aliphatic aldehyde that serves as a key flavor and fragrance ingredient. It matters for its potent, characteristic odor of cucumber and melon rind, which is essential for creating authentic and complex sensory profiles. This compound is primarily needed by flavor and fragrance houses, food manufacturers, and cosmetic formulators seeking to replicate natural, green, and fatty notes in their products.

Application

• Flavor & Fragrance Formulation: A crucial component for imparting fresh, green, and fatty nuances reminiscent of cucumber, melon, and certain vegetable oils in perfumes, colognes, and air fresheners.
• Food & Beverage Flavoring: Used to enhance or create natural-tasting fruit (especially melon), vegetable, and nut flavors in processed foods, beverages, and dairy products.
• Cosmetic & Personal Care: Incorporated as a fragrance ingredient in soaps, lotions, shampoos, and other personal care items to provide a fresh, clean scent profile.
• Aroma Chemical Synthesis: Serves as a valuable intermediate or building block in the synthesis of more complex fragrance molecules and specialty chemicals.
• Research & Development: Utilized in analytical laboratories and R&D departments as a reference standard for sensory analysis, quality control, and product development studies.

Basic Information

Product Name	(E,Z)-2,4-Nonadienal
CAS No.	21661-99-4
Molecular Formula	C₉H₁₄O
Molecular Weight	138.21 g/mol
Synonyms	(2E,4Z)-2,4-Nonadienal; 2,4-Nonadienal; trans,cis-2,4-Nonadienal; Cucumber Aldehyde; Melonal (component); FEMA 3212; 2,4-Nonadien-1-al; (E,Z)-2,4-Nonadien-1-al
EINECS	244-534-6

Quality Control

Our (E,Z)-2,4-Nonadienal is produced and tested under strict quality management systems to ensure batch-to-batch consistency and high purity. Quality is verified through comprehensive analytical methods including GC, HPLC, and IR spectroscopy. Certificates of Analysis (COA) detailing identity, purity, and specific impurity profiles are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen) in a cool, dry, and well-ventilated area at temperatures between 2°C and 8°C to minimize oxidation and degradation. 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% (sum of isomers)
Specific Gravity (20°C)	0.860 - 0.880
Refractive Index (20°C)	1.470 - 1.490

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