Description

Methyl-4-Hydroxy-2-Butynoate is a versatile bifunctional chemical intermediate featuring both a hydroxyl group and an acetylenic ester moiety. This unique structure makes it a valuable building block for synthesizing complex molecules in advanced research and industrial applications. It is primarily sought after by pharmaceutical, agrochemical, and specialty chemical manufacturers for constructing heterocycles, active pharmaceutical ingredients (APIs), and novel polymers.

Application

• Pharmaceutical Intermediate: Key synthon for the production of various heterocyclic compounds and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and plant growth regulators.
• Specialty Polymer Production: Serves as a monomer or cross-linking agent for creating polymers with specific thermal or mechanical properties.
• Organic Synthesis Building Block: Utilized in click chemistry (e.g., Huisgen cycloaddition) and other reactions leveraging its alkyne functionality.
• Fine Chemical Manufacturing: Intermediate in the synthesis of flavors, fragrances, and advanced material precursors.
• Research & Development: A critical reagent in academic and industrial R&D for exploring new synthetic pathways and molecular architectures.

Basic Information

Product Name	Methyl-4-Hydroxy-2-Butynoate
CAS No.	31555-05-2
Molecular Formula	C5H6O3
Molecular Weight	114.10 g/mol
Synonyms	4-Hydroxy-2-butynoic acid methyl ester; Methyl 4-hydroxybut-2-ynoate; 2-Butynoic acid, 4-hydroxy-, methyl ester; 4-Hydroxy-2-butynoic acid methyl ester; Methyl ester of 4-hydroxy-2-butynoic acid
EINECS	Contact for details

Quality Control

Our Methyl-4-Hydroxy-2-Butynoate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are available upon request to support your quality assurance protocols.

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 hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%

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