Description

trans-2-Heptenal is a high-purity, unsaturated aliphatic aldehyde characterized by its distinct, powerful green, fatty, and nutty aroma. This compound is a key flavor and fragrance intermediate, prized for its ability to impart authentic, natural character notes to complex formulations. It is essential for manufacturers in the flavor and fragrance industry, as well as for researchers developing novel aroma chemicals and studying lipid oxidation pathways.

Application

• Flavor & Fragrance (F&F) Industry: A primary building block for creating and enhancing green, fatty, nutty, and vegetable-like notes in perfumes, colognes, and fine fragrances.
• Food Flavorings: Used to replicate the authentic taste of nuts, fried foods, cooked meats, and certain vegetables in processed foods and savory flavor systems.
• Aroma Chemical Synthesis: Serves as a crucial intermediate in the multi-step synthesis of more complex fragrance molecules and specialty aroma chemicals.
• Research & Development: Employed as a standard or reagent in studies related to lipid oxidation, food chemistry, and the analysis of off-flavors in oils and fats.
• Cosmetic Ingredients: Incorporated into cosmetic formulations where specific green or natural olfactory profiles are desired.
• Industrial Odorants: Can be used in trace amounts to create or mask specific odors in various industrial products.

Basic Information

Product Name	trans-2-Heptenal
CAS No.	18829-55-5
Molecular Formula	C7H12O
Molecular Weight	112.17 g/mol
Synonyms	(E)-2-Heptenal; trans-Hept-2-enal; 2-Heptenal, (E)-; (E)-Hept-2-en-1-al; Hept-trans-2-enal; Leaf Aldehyde; 2-Hepten-1-al, (2E)-; FEMA 3165
EINECS	242-600-6

Quality Control

Our trans-2-Heptenal is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and purity. Each lot is analyzed using GC, GC-MS, and IR spectroscopy to confirm identity, isomeric purity, and chemical composition. A comprehensive Certificate of Analysis (COA) detailing assay, physical properties, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen) in a cool, dry, well-ventilated area at 2-8°C. Due to its sensitivity to oxidation, minimize headspace and avoid prolonged exposure to air. 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 (trans- isomer, GC)	≥ 95.0%
Refractive Index (20°C)	1.430 - 1.440
Specific Gravity (20/20°C)	0.845 - 0.855

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