Description

trans-2-Pentenoic Acid is a high-purity, unsaturated short-chain fatty acid derivative, also known as trans-β-vinylacrylic acid. This compound serves as a versatile and valuable chemical intermediate and building block in advanced organic synthesis. It is essential for manufacturers in the pharmaceutical, agrochemical, and specialty fragrance industries seeking to develop novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing active pharmaceutical ingredients (APIs), particularly those requiring unsaturated carboxylic acid motifs.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators.
• Flavor and Fragrance Ingredient: Serves as a precursor for esters and lactones that contribute green, fruity, or fatty notes in perfumery and flavor compositions.
• Organic Synthesis Reagent: Employed in Michael additions, Diels-Alder reactions, and other transformations to introduce a pentenoic acid moiety.
• Polymer Chemistry: Acts as a monomer or co-monomer for creating specialty polymers with specific functional groups.
• Research & Development: A valuable standard and reagent in chemical research for method development and biochemical studies.

Basic Information

Product Name	trans-2-Pentenoic Acid
CAS No.	626-98-2
Molecular Formula	C5H8O2
Molecular Weight	100.12 g/mol
Synonyms	(E)-2-Pentenoic Acid; trans-β-Vinylacrylic Acid; (E)-Pent-2-enoic Acid; 2-trans-Pentenoic Acid; (E)-2-Pentenoic Acid; 2-Pentenoic Acid, (E)-; trans-Pent-2-enoic Acid; (2E)-2-Pentenoic Acid
EINECS	210-964-1

Quality Control

Our trans-2-Pentenoic Acid is produced under a strict quality management system. Every batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure it meets the highest standards for purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with each shipment to guarantee full traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its nature as an unsaturated acid that is easily oxidized, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Isomeric Purity (trans-isomer)	≥ 99.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	1.443 - 1.447
Specific Gravity (20°C)	0.980 - 0.990

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