Description

4-Pentenoic Anhydride is a reactive, high-purity chemical intermediate characterized by its unsaturated pentenoic acid backbone. This compound matters for its utility as a versatile building block in organic synthesis, enabling the introduction of a reactive anhydride moiety with an alkene handle for further functionalization. It is primarily needed by R&D chemists and process development teams in the pharmaceutical, agrochemical, and specialty polymer industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key building block for the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring a carboxylic acid derivative for amide or ester formation.
• Polymer Chemistry: Used as a monomer or cross-linking agent in the production of specialty polymers, resins, and coatings, imparting specific reactivity and properties.
• Agrochemical Synthesis: Serves as a precursor in the manufacture of herbicides, fungicides, and plant growth regulators.
• Organic Synthesis Reagent: Employed in academic and industrial research for acylation reactions, Diels-Alder reactions, and the preparation of other functionalized anhydrides or acids.
• Fine Chemical Production: Utilized in the multi-step synthesis of flavors, fragrances, and advanced material precursors.
• Bioconjugation Chemistry: Potential use in modifying biomolecules, such as proteins or peptides, due to its reactive anhydride group.

Basic Information

Product Name	4-Pentenoic Anhydride
CAS No.	63521-92-6
Molecular Formula	C10H14O3
Molecular Weight	182.22 g/mol
Synonyms	4-Pentenoic acid anhydride; Pent-4-enoic anhydride; 4-Pentenoic acid, 1,1'-anhydride; 3-Butene-1-carboxylic acid anhydride; Allylacetic anhydride; 4-Pentenoyl anhydride; Anhydrid kyseliny 4-penténovej (Czech); 4-ペンテン酸無水物 (Japanese)
EINECS	Contact for details

Quality Control

Our 4-Pentenoic Anhydride is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from strong acids and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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