Description

4-Phenoxybutyric Acid Methyl Ester is a high-purity organic ester compound with the CAS registry number 21273-27-8. It serves as a versatile and valuable chemical intermediate in advanced organic synthesis, enabling the construction of complex molecular architectures. This product is essential for research and development laboratories, as well as production facilities in the pharmaceutical and agrochemical sectors, where it is used to develop active ingredients and fine chemicals.

Application

4-Phenoxybutyric Acid Methyl Ester is a key building block in synthetic organic chemistry. Its primary applications include:

• Pharmaceutical Intermediate: Synthesis of active pharmaceutical ingredients (APIs) and drug candidates, particularly those requiring phenoxybutyric acid derivatives.
• Agrochemical Synthesis: Production of herbicides, fungicides, and plant growth regulators.
• Liquid Crystal & Polymer Chemistry: Serving as a monomer or precursor for specialty polymers and advanced materials.
• Organic Synthesis Research: A versatile reagent for constructing carbon chains and introducing the phenoxy functional group in academic and industrial R&D.
• Flavor & Fragrance Industry: Intermediate for the synthesis of certain aromatic compounds.

Basic Information

Product Name	4-Phenoxybutyric Acid Methyl Ester
CAS No.	21273-27-8
Molecular Formula	C11H14O3
Molecular Weight	194.23 g/mol
Synonyms	Methyl 4-phenoxybutanoate; Butanoic acid, 4-phenoxy-, methyl ester; 4-Phenoxybutanoic acid methyl ester; Methyl 4-phenoxybutyrate; γ-Phenoxybutyric acid methyl ester; NSC 163045; Methyl (4-phenoxy)butyrate
EINECS	Contact for details

Quality Control

We maintain stringent quality control protocols for all our chemical intermediates. Our 4-Phenoxybutyric Acid Methyl Ester is produced and tested to meet high-purity standards suitable for research and industrial synthesis. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with each batch and are available upon request to ensure full traceability and compliance with your project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0% (Area %)
Water Content (KF)	≤ 0.5%

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