Description

2-Amino-4,7-dihydro-5H-thieno[2,3-c]thiopyran-3-carboxylic acid ethyl ester is a high-purity, specialized heterocyclic building block of significant interest in advanced organic synthesis. This compound matters for its role as a key intermediate in the development of novel pharmacologically active molecules, particularly within medicinal chemistry research. Pharmaceutical R&D teams and fine chemical manufacturers need this precise intermediate to streamline the synthesis of complex sulfur- and nitrogen-containing heterocycles, which are core scaffolds in many therapeutic agents.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of novel drug candidates, particularly those targeting the central nervous system (CNS) and other therapeutic areas.
• Medicinal Chemistry Research: Serves as a versatile scaffold for constructing libraries of compounds in structure-activity relationship (SAR) studies.
• Organic Synthesis Building Block: Used in the construction of complex fused heterocyclic systems containing thiophene and thiopyran motifs.
• Agrochemical Research: Potential intermediate in the development of new active ingredients for crop protection products.
• Material Science Precursor: Exploration of its use in the synthesis of organic semiconductors or conductive polymers due to its electron-rich heterocyclic structure.

Basic Information

Product Name	2-Amino-4,7-dihydro-5H-thieno[2,3-c]thiopyran-3-carboxylic acid ethyl ester
CAS No.	173281-01-1
Molecular Formula	C10H13NO2S2
Molecular Weight	243.34 g/mol
Synonyms	Ethyl 2-amino-4,7-dihydro-5H-thieno[2,3-c]thiopyran-3-carboxylate; 2-Amino-4,7-dihydro-5H-thieno[2,3-c]thiopyran-3-carboxylic acid ethyl ester; 173281-01-1; Ethyl 2-amino-5,7-dihydro-4H-thieno[2,3-c]thiopyran-3-carboxylate; 4,7-Dihydro-2-amino-5H-thieno[2,3-c]thiopyran-3-carboxylic acid ethyl ester; 5H-Thieno[2,3-c]thiopyran-3-carboxylic acid, 2-amino-4,7-dihydro-, ethyl ester
EINECS	Contact for details

Quality Control

Our 2-Amino-4,7-dihydro-5H-thieno[2,3-c]thiopyran-3-carboxylic acid ethyl ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and can be tailored to meet specific client requirements for research or cGMP-grade material.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

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