Description

2-Amino-4-Cyclopropyl-Thiophene-3-Carboxylic Acid Ethyl Ester is a high-value heterocyclic building block essential for advanced organic synthesis. This compound matters as a critical intermediate in the development of novel active pharmaceutical ingredients (APIs) and agrochemicals, enabling the construction of complex molecular architectures. It is primarily needed by R&D chemists and process development teams in the pharmaceutical, agrochemical, and specialty chemical industries for creating new compounds with targeted biological activity.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and infectious diseases.
• Agrochemical Synthesis: Used in the research and development of new-generation pesticides and herbicides, leveraging the thiophene scaffold for bioactivity.
• Material Science Research: Serves as a monomer or building block for developing advanced polymers and organic electronic materials.
• Chemical Biology & Proteomics: Employed as a specialty reagent for creating molecular probes and enzyme inhibitors in biochemical research.
• Custom Synthesis & Contract Manufacturing: A vital starting material for custom synthesis houses producing bespoke compounds for client R&D programs.

Basic Information

Product Name	2-Amino-4-Cyclopropyl-Thiophene-3-Carboxylic Acid Ethyl Ester
CAS No.	120109-75-3
Molecular Formula	C10H13NO2S
Molecular Weight	211.28 g/mol
Synonyms	Ethyl 2-Amino-4-cyclopropylthiophene-3-carboxylate; 2-Amino-4-cyclopropyl-3-thiophenecarboxylic Acid Ethyl Ester; 4-Cyclopropyl-2-aminothiophene-3-carboxylic Acid Ethyl Ester; 3-Thiophenecarboxylic acid, 2-amino-4-cyclopropyl-, ethyl ester; 120109-75-3; Ethyl 2-amino-4-cyclopropyl-3-thiophenecarboxylate; 2-Amino-4-cyclopropylthiophene-3-carboxylic acid ethyl ester; 4-Cyclopropyl-2-aminothiophene-3-carboxylate ethyl ester
EINECS	Contact for details

Quality Control

Our 2-Amino-4-Cyclopropyl-Thiophene-3-Carboxylic Acid Ethyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure high purity and batch-to-batch consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance and regulatory documentation needs.

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 prevent moisture absorption. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 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.