Description

Trans,trans-2,4-Heptadienal is a high-purity, conjugated dienal compound characterized by its distinct, fatty, and nutty aroma profile. This aldehyde serves as a critical flavor and fragrance intermediate, prized for its ability to impart green, fatty, and cucumber-like notes. It is essential for manufacturers in the flavor & fragrance, food, and specialty chemical synthesis industries seeking to create authentic, complex organoleptic profiles.

Application

• Flavor & Fragrance (F&F) Industry: A key building block for creating and enhancing flavors with fatty, green, nutty, and cucumber nuances in beverages, dairy products, and savory applications.
• Aroma Chemical Synthesis: Used as a versatile intermediate in the synthesis of more complex fragrance molecules and aroma chemicals.
• Food Flavoring: Employed in the formulation of natural-identical and artificial flavors to replicate the taste of nuts, fruits, and vegetables.
• Research & Development: Serves as a standard or reagent in organic synthesis and analytical chemistry research within academic and industrial laboratories.
• Specialty Chemical Production: Acts as a precursor in the manufacture of agrochemicals, pharmaceuticals, and other fine chemicals where its dienal structure is utilized.

Basic Information

Product Name	Trans,trans-2,4-Heptadienal
CAS No.	5910-85-0
Molecular Formula	C7H10O
Molecular Weight	110.15 g/mol
Synonyms	(E,E)-2,4-Heptadienal; 2,4-Heptadienal, (E,E)-; (2E,4E)-Hepta-2,4-dienal; 2-trans,4-trans-Heptadienal; Hepta-2,4-dienal; FEMA 3164; Leaf aldehyde (common name)
EINECS	227-622-6

Quality Control

Our Trans,trans-2,4-Heptadienal is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to ensure identity, purity, and consistency. We provide full traceability and Certificates of Analysis (COA) are available for every shipment, confirming compliance with relevant industry specifications such as FEMA and FCC where applicable.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at temperatures between 2°C and 8°C (refrigerated) to maximize stability and shelf-life. This product is easily oxidized; for long-term storage, an inert atmosphere (nitrogen or argon) is recommended. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0% (sum of isomers, typically ≥98% trans,trans)
Refractive Index (20°C)	1.520 - 1.530
Specific Gravity (20°C)	0.870 - 0.890
Related Substances (GC)	Total impurities ≤ 5.0%

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