Description

4-Oxo-Tetrahydro-Thiophene-3-Carboxylicacidmethylester CAS NO 99328-39-9 is a versatile heterocyclic building block and key synthetic intermediate. This compound is valued for its reactive carbonyl and ester functionalities, which enable its use in constructing complex molecular architectures. It is primarily sought after by research chemists and process development teams in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of potential drug candidates, particularly those containing modified thiophene or γ-lactam scaffolds.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and insecticides, leveraging its heterocyclic core.
• Organic Synthesis Building Block: Serves as a versatile starting material for cyclization reactions, Michael additions, and other transformations to create complex heterocycles.
• Material Science Research: Investigated as a monomer or precursor for specialty polymers and advanced organic materials with specific electronic properties.
• Chemical Biology Probes: Utilized in the development of molecular probes and tool compounds for studying biological pathways and enzyme inhibition.

Basic Information

Product Name	4-Oxo-Tetrahydro-Thiophene-3-Carboxylicacidmethylester
CAS No.	99328-39-9
Molecular Formula	C7H8O3S
Molecular Weight	172.20 g/mol
Synonyms	Methyl 4-oxotetrahydrothiophene-3-carboxylate; 3-Carbomethoxy-4-oxotetrahydrothiophene; 4-Oxo-tetrahydro-thiophene-3-carboxylic acid methyl ester; 3-Methoxycarbonyl-4-oxotetrahydrothiophene; Tetrahydro-4-oxothiophene-3-carboxylic acid methyl ester; 3-(Methoxycarbonyl)-4-oxotetrahydrothiophene; 4-Oxo-3-thiophenecarboxylic acid methyl ester, tetrahydro-
EINECS	Contact for details

Quality Control

Our 4-Oxo-Tetrahydro-Thiophene-3-Carboxylicacidmethylester is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for research and process chemistry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and support your quality assurance processes.

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 bases and incompatible organic solvents. For long-term storage, consider an inert atmosphere to maintain optimal stability.

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%
Related Substances (HPLC)	Individual impurity ≤ 0.5% Total impurities ≤ 1.0%

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