Description

4-Hydroxy-But-2-Enoic Acid is a versatile, unsaturated hydroxy acid that serves as a valuable intermediate in organic synthesis. Its bifunctional nature, featuring both a carboxylic acid and an allylic alcohol group, makes it a key building block for creating complex molecules. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of various active pharmaceutical ingredients (APIs), particularly those requiring chiral centers or specific functional groups.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators, leveraging its reactive sites for molecular diversification.
• Polymer & Material Science: Acts as a monomer or co-monomer for creating specialty polymers, coatings, and resins with tailored properties like biodegradability or specific reactivity.
• Flavor & Fragrance Industry: Serves as a starting material for synthesizing specific lactones and esters that contribute to complex aroma and flavor profiles.
• Chemical Research & Development: A valuable tool in academic and industrial R&D for exploring new synthetic pathways, catalysis, and asymmetric synthesis.
• Cross-Coupling Reactions: Its structure makes it suitable for use in palladium-catalyzed and other metal-mediated coupling reactions to form carbon-carbon bonds.

Basic Information

Product Name	4-Hydroxy-But-2-Enoic Acid
CAS No.	24587-49-3
Molecular Formula	C4H6O3
Molecular Weight	102.09 g/mol
Synonyms	4-Hydroxybut-2-enoic Acid; (E)-4-Hydroxybut-2-enoic Acid; 2-Butenoic acid, 4-hydroxy-; 4-Hydroxycrotonic Acid; trans-4-Hydroxy-2-butenoic Acid; 4-Hydroxy-trans-2-butenoic Acid; Vinylacetic acid, 3-hydroxy-; 3-Hydroxyvinylacetic Acid
EINECS	Contact for details

Quality Control

Our 4-Hydroxy-But-2-Enoic Acid is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including identification, purity assay, and impurity profiling, to ensure it meets the high standards required for advanced synthetic applications. A Certificate of Analysis (COA) detailing all test results 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 area at a controlled room temperature (15-25°C). The product may be hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent quality degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	< 10 ppm

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