Description

4-(Benzyloxy)-2-Butynoic Acid Methyl Ester is a versatile chemical intermediate featuring a benzyl-protected alkyne ester functionality. This compound is valued for its role in synthetic organic chemistry, particularly in the construction of complex molecular architectures through coupling and cyclization reactions. It is primarily sought by research institutions and industrial R&D departments in the pharmaceutical, agrochemical, and advanced materials sectors for the development of new active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, especially those requiring alkyne components for click chemistry or Sonogashira coupling.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides, where its structure can be incorporated into active molecules.
• Material Science Research: Serves as a monomer or precursor in the development of specialty polymers and advanced organic materials with tailored properties.
• Academic & Industrial R&D: Essential reagent for methodological studies in organic synthesis, including the development of new catalytic processes.
• Fine Chemical Production: Employed in the multi-step synthesis of complex fragrance and flavor ingredients.

Basic Information

Product Name	4-(Benzyloxy)-2-Butynoic Acid Methyl Ester
CAS No.	149125-61-1
Molecular Formula	C₁₂H₁₂O₃
Molecular Weight	204.22 g/mol
Synonyms	Methyl 4-(benzyloxy)but-2-ynoate; Methyl 4-(phenylmethoxy)-2-butynoate; 2-Butynoic acid, 4-(benzyloxy)-, methyl ester; 4-Benzyloxy-2-butynoic acid methyl ester
EINECS	Contact for details

Quality Control

Our production of 4-(Benzyloxy)-2-Butynoic Acid Methyl Ester adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced chromatographic and spectroscopic techniques (HPLC, GC, NMR) to verify identity and quantify purity. Certificates of Analysis (COA) detailing all relevant specifications are provided with every shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. For long-term storage, consider under an inert atmosphere.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (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.