Description

2-Amino-5,7-diphenyl-4,7-dihydro-5H-thieno[2,3-c]thiopyran-3-carboxylic acid ethyl ester is a high-value, heterocyclic organic compound featuring a fused thienothiopyran core, making it a versatile intermediate for advanced chemical synthesis. Its molecular architecture is particularly significant for the development of novel pharmacologically active molecules and functional materials. This compound is essential for research and development chemists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to build complex molecular scaffolds.

Application

• Pharmaceutical Intermediate: Serves as a critical building block in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders, inflammation, or infectious diseases.
• Agrochemical Research: Used in the development of new active ingredients for crop protection products, leveraging its heterocyclic structure for bioactivity.
• Material Science Precursor: Acts as a monomer or functional additive in the research of organic semiconductors, conductive polymers, or advanced organic frameworks (MOFs/COFs).
• Chemical Biology Probe: Utilized in medicinal chemistry to create molecular probes for studying enzyme function or protein-ligand interactions.
• Dye & Pigment Synthesis: Functions as a key intermediate for producing specialized heterocyclic dyes and organic pigments with specific optical properties.
• Academic & Contract Research: Supplied to universities, government labs, and CROs (Contract Research Organizations) for fundamental chemical research and custom synthesis projects.

Basic Information

Product Name	2-Amino-5,7-diphenyl-4,7-dihydro-5H-thieno[2,3-c]thiopyran-3-carboxylic acid ethyl ester
CAS No.	24895-74-7
Molecular Formula	C22H19NO2S2
Molecular Weight	393.52 g/mol
Synonyms	Ethyl 2-amino-5,7-diphenyl-4,7-dihydro-5H-thieno[2,3-c]thiopyran-3-carboxylate; 2-Amino-5,7-diphenyl-4,7-dihydro-5H-thieno[2,3-c]thiopyran-3-carboxylic acid ethyl ester; 5H-Thieno[2,3-c]thiopyran-3-carboxylic acid, 2-amino-5,7-diphenyl-4,7-dihydro-, ethyl ester; Ethyl 2-amino-5,7-diphenyl-4,7-dihydrothieno[2,3-c]thiopyran-3-carboxylate; CAS 24895-74-7
EINECS	Contact for details

Quality Control

Our 2-Amino-5,7-diphenyl-4,7-dihydro-5H-thieno[2,3-c]thiopyran-3-carboxylic acid ethyl ester is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment. We support custom synthesis and can tailor purity grades (from technical to >98%) to meet specific research or GMP starting material requirements.

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 nature, the container must be kept tightly sealed to exclude moisture. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Purity (HPLC)	≥ 95.0% (Standard Grade)
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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