trans,trans-2,4-Decadien-1-al (CAS#25152-84-5）
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R36/38 - Irritating to eyes and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 2 |
| RTECS | HD3000000 |
| FLUKA BRAND F CODES | 10-23 |
| TSCA | Yes |
| HS Code | 29121900 |
| Packing Group | III |
Introduction
Orange, fresh sweet orange-like aroma, with fat flavor, insoluble in water, soluble in most organic solvents.
trans,trans-2,4-Decadien-1-al (E,E)-2,4-Decadienal | CAS 25152 84 5
One Line Sourcing Position
High purity trans,trans-2,4-Decadienal for savory flavor enhancement, fragrance compounding, and lipid oxidation analysis applications.
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Specification
| Parameter | Specification |
|---|---|
| Purity by GC | 95.0 percent minimum (sum of isomers) |
| Appearance | Colorless to pale yellow to yellow clear liquid |
| Molecular Formula | C10H16O |
| Molecular Weight | 152.23 g per mol |
| Boiling Point | 114 to 116 degrees Celsius at 10 mmHg |
| Density | 0.866 to 0.872 g per mL at 20 to 25 degrees Celsius |
| Refractive Index | 1.514 to 1.518 at 20 degrees Celsius |
| Flash Point | 101 degrees Celsius (closed cup) |
| Vapor Density | Greater than 1 (vs air) |
| Acid Value | 5.00 max KOH per g |
| Solubility | Insoluble in water; soluble in alcohol and fixed oils |
| LogP | 3.18 |
| Odor | Powerful fatty, chicken, fried, citrus, chicken fat, coriander and brothy |
| Stock Status | In Stock in US warehouse and China hub |
Available Quantity and Lead Time
Regular supply: 100 g to 10 metric tons per shipment
Lead time: 3 to 5 days for standard packaging; bulk orders require 7 to 10 days
Document Support
COA SDS HPLC chromatogram NMR spectrum Mass spectrum MS available upon request
Application
trans,trans-2,4-Decadienal is a naturally occurring alpha, beta unsaturated aldehyde formed as a lipid peroxidation product of linoleic acid. It is found in butter, cooked beef, fish, potato chips, roasted peanuts, buckwheat, wheat bread crumbs, rice, tomato, and cold-pressed orange and tangerine oils. It is also generated when chicken fat undergoes thermal degradation, providing the iconic roasted chicken scent.
In the flavor industry, trans,trans-2,4-Decadienal is a high impact flavor ingredient used at microscopic parts per million (PPM) dosages. It imparts powerful fatty, chicken, fried, and brothy notes, making it essential for chicken, fried food, potato, and savory flavor formulations. At lower concentrations, it exhibits a sweet, citrusy, orange like character. It is approved as FEMA GRAS 3135 and meets JECFA specifications.
In the fragrance industry, trans,trans-2,4-Decadienal is used in perfuming compositions requiring fatty, gourmand, or savory nuances. It works well in chicken and soup flavors, as well as with non-chicken fatty notes such as beef, pork and lamb.
In analytical chemistry, trans,trans-2,4-Decadienal serves as a validated marker for oxidative rancidity in edible oils, with established RP-HPLC detection limits. It is also employed in studies of lipid oxidation and protein stability.
In research applications, trans,trans-2,4-Decadienal has been evaluated as a corrosion inhibitor for steel in oil field operations. It also exhibits documented nematicidal activity.
Custom Synthesis Support
We offer custom synthesis for trans,trans-2,4-Decadienal derivatives including isotopically labeled analogs, higher purity grades (99.0 percent and above), and custom formulations. Share your technical datasheet for feasibility review.
Packaging and Shipping
Available in 25 g, 100 g, 500 g, 1 kg, 5 kg, or 25 kg HDPE drums with PTFE lined caps. Custom packaging such as amber glass bottles under inert atmosphere is supported. Fastest dispatch within 7 days after order confirmation.
trans,trans-2,4-Decadienal is air sensitive and light sensitive. Store refrigerated at 2 to 8 degrees Celsius in tightly sealed containers under inert gas (nitrogen or argon). Keep away from strong oxidizing agents. Combustible liquid; store in a cool, well ventilated area away from ignition sources. UN 3082, Class 9, Packing Group III.
Why XinChem
XinChem provides trans,trans-2,4-Decadienal with strict control of purity, isomer composition, and odor profile for US customers. Our ISO 9001 certified facility monitors every batch by GC and sensory evaluation, ensuring consistent quality for flavor, fragrance, and analytical applications. We maintain a buffer stock in US warehouses for emergency deliveries within 48 hours. Each order includes a full documentation package: COA, SDS, and chromatograms accessible through our online portal. Our technical support team assists with handling under inert atmosphere, stability optimization, and regulatory compliance including TSCA (Yes), EINECS 246-668-9, FEMA GRAS 3135, FDA food additive regulations, JECFA No. 1190, and EU regulations 1334/2008 and 178/2002. For contract customers, we offer quarterly price locks and consignment inventory to reduce supply chain risk. Trusted by numerous flavor houses, fragrance companies, and analytical laboratories in North America. We also provide free sample evaluation for qualified R&D projects and a price match guarantee against any valid competitor quote for equivalent quality. All shipments are packaged under inert atmosphere to prevent oxidation and preserve olfactory quality, with clear handling instructions.
FAQ
Q1 How should trans,trans-2,4-Decadienal be stored to maintain its quality?
A Store refrigerated at 2 to 8 degrees Celsius in tightly sealed containers under inert gas (nitrogen or argon). Protect from light and air, as the compound is air sensitive and light sensitive. Shelf life is 12 months or longer if stored properly.
Q2 What purity grades do you supply?
A Standard grade is 95.0 percent minimum (sum of isomers) by GC. We also supply 98.0 percent and 99.0 percent grades for high end flavor applications and analytical reference standards upon request.
Q3 Is trans,trans-2,4-Decadienal soluble in water?
A No, it is insoluble in water. It is soluble in alcohol, fixed oils, DMF, DMSO, and ethanol.
Q4 Do you provide sample quantities for flavor development?
A Yes, free samples of 5 g are available for qualified US companies. Shipping fee applies for small quantities.
Q5 Is trans,trans-2,4-Decadienal approved for use as a food flavoring?
A Yes, it is FEMA GRAS (No. 3135), listed in the FDA EAFUS database as a flavoring agent or adjuvant, and meets JECFA specifications (No. 1190). Please request our regulatory package for your specific application.
Q6 What are the main applications of this compound?
A Primary applications include: (1) high impact flavoring agent for chicken, fried food, potato, and savory flavors; (2) fragrance component for fatty and gourmand accords; (3) analytical marker for oxidative rancidity in edible oils; and (4) research chemical for lipid oxidation and corrosion inhibition studies.
Q7 What is the odor profile of trans,trans-2,4-Decadienal?
A It has a very powerful, fatty, chicken, fried, and brothy odor. At lower concentrations, it exhibits a sweet, citrusy, orange like character. It is one of the main volatile flavor constituents of rice, tomato, and citrus oils.
