Description

4-Hydroxy-2-Methylenebutanoic Acid is a versatile bifunctional organic compound featuring both a hydroxyl and a carboxylic acid group on a short-chain alkene backbone. This unique structure makes it a valuable building block and intermediate for the synthesis of more complex molecules in fine chemical and pharmaceutical manufacturing. It is particularly sought after by R&D chemists and production specialists in the pharmaceutical, agrochemical, and specialty polymer industries for its reactive methylene and acid functionalities.

Application

• Pharmaceutical Intermediate: Key starting material or synthon for the production of active pharmaceutical ingredients (APIs), especially those requiring a short-chain hydroxy acid moiety.
• Agrochemical Synthesis: Used in the manufacture of herbicides, fungicides, and plant growth regulators where its structure can be incorporated into bioactive molecules.
• Polymer & Resin Modifier: Serves as a monomer or cross-linking agent in the production of specialty polymers, coatings, and adhesives, imparting polarity and reactivity.
• Fine Chemical Building Block: Employed in organic synthesis for creating complex esters, lactones, and other derivatives used in fragrances, flavors, and advanced materials.
• Biochemical Research: Utilized as a substrate or analog in enzymatic studies and metabolic pathway research due to its structural similarity to natural hydroxy acids.
• Chelating Agent Precursor: Acts as a precursor for synthesizing ligands and chelating agents used in metal ion sequestration and catalysis.

Basic Information

Product Name	4-Hydroxy-2-Methylenebutanoic Acid
CAS No.	24923-76-0
Molecular Formula	C5H8O3
Molecular Weight	116.12 g/mol
Synonyms	2-Methylene-4-hydroxybutanoic acid; 4-Hydroxy-2-methylenebutyric acid; 2-Methylidenebutanoic acid, 4-hydroxy-; 2-Methylene-4-hydroxybutyric acid; 4-Hydroxy-2-methylidenebutanoic acid; 2-Methylenebutanoic acid, 4-hydroxy-; (Hydroxymethyl)acrylic acid; 3-Hydroxy-3-butenoic acid (tautomeric form).
EINECS	Contact for details

Quality Control

Our 4-Hydroxy-2-Methylenebutanoic Acid is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) upon request, detailing all critical parameters. Our quality commitment ensures the material is suitable for demanding applications in GMP-aligned environments and research.

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 nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture. Keep away from incompatible materials such as strong oxidizing agents, strong bases, and strong acids.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Melting Point	Contact for details
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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