Description

Ethyl 4-(4-Methoxyphenylthio)-3-Oxobutanoate is a high-purity, specialized organic intermediate featuring a β-ketoester moiety linked to a 4-methoxyphenylthio group. This unique molecular architecture makes it a valuable building block for synthesizing complex heterocyclic compounds and active pharmaceutical ingredients (APIs). It is primarily sought after by research institutions and manufacturers in the pharmaceutical and agrochemical sectors for process development and scale-up activities. The compound is supplied with full analytical documentation to ensure batch-to-batch consistency and support rigorous quality standards.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those with sulfur-containing heterocycles.
• Agrochemical Synthesis: Used in the research and development of advanced pesticides and herbicides.
• Organic Synthesis Building Block: Employed in academic and industrial R&D for constructing complex molecules via reactions at the active methylene and carbonyl groups.
• Material Science Research: Investigated as a monomer or additive in the development of specialized polymers and advanced materials.
• Chemical Reference Standard: Serves as a high-purity standard for analytical method development and quality control in chemical production.

Basic Information

Product Name	Ethyl 4-(4-Methoxyphenylthio)-3-Oxobutanoate
CAS No.	145389-08-8
Molecular Formula	C13H16O4S
Molecular Weight	268.33 g/mol
Synonyms	Ethyl 4-(4-Methoxyphenylthio)-3-oxobutanoate; 3-Oxobutanoic acid, 4-[(4-methoxyphenyl)thio]-, ethyl ester; Ethyl (4-methoxyphenylthio)acetoacetate; 4-(4-Methoxyphenylthio)-3-oxobutanoic acid ethyl ester; Acetoacetic acid 4-(p-methoxyphenylthio) ethyl ester
EINECS	Contact for details

Quality Control

Every batch of Ethyl 4-(4-Methoxyphenylthio)-3-Oxobutanoate is manufactured and tested under a strict quality management system. We ensure compliance with relevant industry standards for fine chemical intermediates. Comprehensive testing includes identity confirmation, purity assay, and impurity profiling. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and product integrity.

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). This product is easily oxidized and should be handled under an inert atmosphere for prolonged storage or after opening to maintain stability. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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