Description

3-Thiophenecarboxylicacid,Tetrahydro-5-Oxo-,Methylester(9Ci) is a high-purity heterocyclic building block and synthetic intermediate of significant interest in advanced organic synthesis. This compound matters for its role as a versatile precursor in the development of novel pharmaceuticals and agrochemicals, enabling the construction of complex molecular architectures. It is primarily needed by research and development chemists, process development scientists, and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries.

Application

• Pharmaceutical Intermediate: A key building block for the synthesis of active pharmaceutical ingredients (APIs), particularly those containing modified thiophene or lactone motifs.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its heterocyclic structure for bioactivity.
• Organic Synthesis Reagent: Serves as a versatile precursor for ring-opening, condensation, and functional group transformation reactions in complex molecule assembly.
• Material Science Research: Investigated as a monomer or precursor for specialty polymers and advanced organic electronic materials.
• Chemical Biology Probes: Utilized in the design and synthesis of molecular probes for studying biological pathways and enzyme inhibition.

Basic Information

Product Name	3-Thiophenecarboxylicacid,Tetrahydro-5-Oxo-,Methylester(9Ci)
CAS No.	192879-21-3
Molecular Formula	C7H8O3S
Molecular Weight	172.20 g/mol
Synonyms	Methyl tetrahydro-5-oxo-3-thiophenecarboxylate; 3-Carbomethoxy-4,5-dihydro-5-oxothiophene; 4,5-Dihydro-5-oxo-3-thiophenecarboxylic acid methyl ester; Tetrahydro-5-oxo-3-thiophenecarboxylic acid methyl ester; 3-(Methoxycarbonyl)-4,5-dihydrothiophen-5-one; 5-Oxo-4,5-dihydrothiophene-3-carboxylic acid methyl ester; Methyl 5-oxo-2,3-dihydrothiophene-3-carboxylate
EINECS	Contact for details

Quality Control

Our 3-Thiophenecarboxylicacid,Tetrahydro-5-Oxo-,Methylester(9Ci) is produced under a strict quality management system to ensure batch-to-batch consistency and high purity. All materials undergo rigorous analytical testing, including HPLC, GC, and NMR, to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment and is available upon request.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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