Description

(E)-4-Hexenoic Acid CAS NO 1577-20-4 is a high-purity, unsaturated carboxylic acid characterized by its specific (E)-configuration, offering a versatile building block for advanced organic synthesis. This compound is valued for its role as a key chiral intermediate and its ability to introduce functionalized hexenoic acid moieties into target molecules. It is essential for research and development chemists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to create novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Serves as a critical precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring specific stereochemistry and unsaturated side chains.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and plant growth regulators where the hexenoic acid structure imparts specific biological activity.
• Flavor and Fragrance Ingredient: Acts as a starting material for the production of esters and lactones that contribute to complex flavor and aroma profiles.
• Polymer Chemistry: Functions as a monomer or co-monomer for creating specialized polymers with tailored properties, such as modified polyesters or acrylics.
• Organic Synthesis Reagent: Employed in various name reactions, including Michael additions and cyclization reactions, to construct complex molecular architectures.
• Liquid Crystal and Material Science: Utilized in the synthesis of organic compounds for electronic materials and liquid crystal displays (LCDs).

Basic Information

Item	Details
Product Name	(E)-4-Hexenoic Acid
CAS No.	1577-20-4
Molecular Formula	C₆H₁₀O₂
Molecular Weight	114.14 g/mol
Synonyms	(E)-4-Hexenoic Acid; trans-4-Hexenoic Acid; (E)-But-2-enylacetic Acid; 4-Hexenoic Acid, (E)-; 4-trans-Hexenoic Acid; FA 4:1, n-2, (E)-; Hex-4-enoic acid, (4E)-; 1577-20-4
EINECS	216-404-9

Quality Control

Every batch of our (E)-4-Hexenoic Acid is manufactured and tested under a strict quality management system. We ensure compliance with relevant industry standards, and comprehensive analytical testing is performed to verify identity, purity, and isomer specificity. A Certificate of Analysis (COA) detailing purity (typically ≥97% by GC or HPLC), specific rotation (if applicable), and impurity profiles is provided with each shipment to guarantee batch-to-batch consistency for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. For long-term stability, storage at 2-8°C is recommended. The product is a strong acid/organic solvent; handle with appropriate personal protective equipment in a fume hood.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0%
(E)-Isomer Content	≥ 98.0% (of total 4-Hexenoic Acid)
Water Content (KF)	≤ 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.