Description

trans-2,4-Pentadienoicacid is a conjugated diene carboxylic acid, serving as a versatile and reactive building block in organic synthesis. Its unique structure, featuring a trans-configured diene system adjacent to a carboxylic acid group, makes it a valuable precursor for Diels-Alder reactions and the synthesis of complex molecular frameworks. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key starting material for the synthesis of various heterocyclic compounds and active pharmaceutical ingredients (APIs) via cycloaddition and functionalization reactions.
• Agrochemical Synthesis: Used in the production of advanced crop protection agents and herbicides, leveraging its reactivity to create novel molecular structures.
• Polymer & Material Science: Acts as a monomer or cross-linking agent for creating specialty polymers with specific thermal or mechanical properties.
• Organic Synthesis Building Block: Employed in Diels-Alder reactions to construct complex carbocyclic and heterocyclic ring systems for fine chemicals.
• Flavor & Fragrance Industry: Potential intermediate for synthesizing specific unsaturated esters and lactones used in fragrance compositions.
• Research & Development: A crucial reagent in academic and industrial R&D for exploring new synthetic methodologies and creating novel chemical entities.

Basic Information

Product Name	trans-2,4-Pentadienoic acid
CAS No.	21651-12-7
Molecular Formula	C5H6O2
Molecular Weight	98.10 g/mol
Synonyms	(2E,4E)-2,4-Pentadienoic acid; (E,E)-2,4-Pentadienoic acid; trans,trans-2,4-Pentadienoic acid; 2,4-Pentadienoic acid, (E,E)-; Glutinic acid; 2,4-Pentadienoic acid; 21651-12-7; (E,E)-Sorbic acid isomer
EINECS	244-517-7

Quality Control

Our trans-2,4-Pentadienoic acid is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by FT-IR and NMR spectroscopy, to ensure it meets exacting standards for research and industrial use. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). Due to its nature as an easily oxidized compound, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation to maintain optimal purity and stability. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	92 - 96 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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