Description

4-Pentenoic Acid, 3-Hydroxy-, Ethyl Ester is a versatile bifunctional organic intermediate, combining an unsaturated ester with a hydroxyl group in its molecular structure. This unique architecture makes it a valuable building block for synthesizing complex molecules in fine chemical and pharmaceutical research. It is primarily sought after by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for constructing chiral centers and functionalized carbon chains.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring chiral 3-hydroxy acid derivatives.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators that leverage its reactive olefin and alcohol functionalities.
• Flavor & Fragrance Ingredient: Serves as a starting material for creating esters and lactones that contribute to complex aroma profiles.
• Polymer Modification: Acts as a functional monomer or cross-linking agent for specialty polymers, introducing hydroxyl groups for further chemical modification.
• Organic Synthesis Building Block: Employed in asymmetric synthesis, Michael additions, and cyclization reactions to construct heterocycles and complex natural product analogs.
• Ligand & Catalyst Development: Useful for preparing chiral ligands and metal-organic complexes used in catalytic processes.

Basic Information

Product Name	4-Pentenoic Acid, 3-Hydroxy-, Ethyl Ester
CAS No.	38996-01-9
Molecular Formula	C7H12O3
Molecular Weight	144.17 g/mol
Synonyms	Ethyl 3-Hydroxy-4-pentenoate; 3-Hydroxy-4-pentenoic Acid Ethyl Ester; Ethyl 3-Hydroxypent-4-enoate; 4-Pentenoic acid, 3-hydroxy-, ethyl ester; 3-Hydroxy-4-pentenoic acid ethyl ester; Ethyl (3-hydroxy-4-penten-1-oate); 3-Hydroxypent-4-enoic acid ethyl ester
EINECS	Contact for details

Quality Control

Our 4-Pentenoic Acid, 3-Hydroxy-, Ethyl Ester is produced under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, enantiomeric excess (if applicable), and impurity profiles. Our quality commitment supports applications requiring high-purity intermediates for research and cGMP manufacturing.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. The compound may be hygroscopic (moisture-sensitive); ensure containers are sealed under an inert atmosphere if specified for the grade.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Specific Rotation (if chiral)	Contact for details

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