Description

Ethyl 2-[(4-Methoxy-4-Oxobutanoyl)Amino]-5,6-Dihydro-4H-Cyclopenta[B]Thiophene-3-Carboxylate is a high-purity, advanced pharmaceutical intermediate with a complex heterocyclic structure. This compound is critical for research and development in medicinal chemistry, particularly in the synthesis of novel therapeutic agents. It is primarily needed by pharmaceutical R&D laboratories, contract research organizations (CROs), and fine chemical manufacturers focused on developing new active pharmaceutical ingredients (APIs).

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders or inflammatory pathways.
• Medicinal Chemistry Research: Used in structure-activity relationship (SAR) studies to optimize the potency and selectivity of lead compounds.
• API Development: Serves as a precursor in the multi-step synthesis of complex, target-specific active pharmaceutical ingredients.
• Chemical Biology Probes: Utilized in the development of molecular probes for studying biological mechanisms and target validation.
• Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for custom synthesis projects under cGMP conditions.
• Academic Research: Employed in university and institutional labs for exploratory synthetic organic chemistry and drug discovery programs.

Basic Information

Item	Details
Product Name	Ethyl 2-[(4-Methoxy-4-Oxobutanoyl)Amino]-5,6-Dihydro-4H-Cyclopenta[B]Thiophene-3-Carboxylate
CAS No.	307339-06-6
Molecular Formula	C16H19NO5S
Molecular Weight	337.39 g/mol
Synonyms	Ethyl 2-[(4-Methoxy-4-oxobutanoyl)amino]-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate; 2-[(4-Methoxy-4-oxobutanoyl)amino]-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxylic acid ethyl ester; 307339-06-6; Ethyl 2-(4-methoxy-4-oxobutanamido)-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxylate; 4H-Cyclopenta[b]thiophene-3-carboxylic acid, 2-[(4-methoxy-4-oxobutanoyl)amino]-5,6-dihydro-, ethyl ester
EINECS	Contact for details

Quality Control

Our Ethyl 2-[(4-Methoxy-4-Oxobutanoyl)Amino]-5,6-Dihydro-4H-Cyclopenta[B]Thiophene-3-Carboxylate is manufactured under strict quality systems to ensure batch-to-batch consistency and high purity, suitable for demanding research and development applications. All batches are supported by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We adhere to relevant quality guidelines to support our clients' regulatory and compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from incompatible materials. For long-term storage, consider inert atmosphere conditions to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Any single unknown impurity	≤ 0.5%
Residual Solvents (GC)	Complies with ICH Q3C guidelines
Loss on Drying	≤ 0.5%

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