Description

2-Amino-5,5,7,7-tetramethyl-4,5,6,7-tetrahydro-thieno[2,3-c]pyridine-3-carboxylic acid ethyl ester is a high-purity, advanced pharmaceutical intermediate characterized by its complex fused-ring heterocyclic structure. This compound is of significant commercial value for its role as a key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring sophisticated molecular architectures. It is primarily sought by research institutions and manufacturers in the pharmaceutical and agrochemical industries engaged in developing new drugs and specialty chemicals.

Application

• Pharmaceutical Intermediate: A critical precursor in the multi-step synthesis of complex drug candidates, especially those targeting central nervous system (CNS) disorders.
• Agrochemical Research: Serves as a core scaffold for developing new pesticides and herbicides with specific biological activity.
• Organic Synthesis Building Block: Used in academic and industrial R&D for constructing novel heterocyclic compounds and exploring new chemical spaces.
• Material Science: Potential application in the development of organic electronic materials due to its electron-rich thienopyridine core.
• Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for custom synthesis projects under cGMP conditions.

Basic Information

Product Name	2-Amino-5,5,7,7-tetramethyl-4,5,6,7-tetrahydro-thieno[2,3-c]pyridine-3-carboxylic acid ethyl ester
CAS No.	133894-40-3
Molecular Formula	C15H22N2O2S
Molecular Weight	294.41 g/mol
Synonyms	Ethyl 2-amino-5,5,7,7-tetramethyl-4,7-dihydro-5H-thieno[2,3-c]pyridine-3-carboxylate; 2-Amino-5,5,7,7-tetramethyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxylic acid ethyl ester; ATTP Ethyl Ester; Thienopyridine derivative 133894-40-3; 5,5,7,7-Tetramethyl-2-amino-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxylic acid ethyl ester
EINECS	Contact for details

Quality Control

Our 2-Amino-5,5,7,7-tetramethyl-4,5,6,7-tetrahydro-thieno[2,3-c]pyridine-3-carboxylic acid ethyl ester is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via NMR and IR spectroscopy, to ensure it meets the high standards required for pharmaceutical R&D and production. A comprehensive Certificate of Analysis (COA) detailing purity, impurities, and physical characteristics 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, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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