Description

2-Thiophenecarboxylicacid,3-Amino-5-Methoxy-,Ethylester(9Ci) is a high-purity, functionalized thiophene derivative of significant interest in advanced organic synthesis. This compound matters as a versatile and critical building block for constructing complex heterocyclic systems, particularly in pharmaceutical and agrochemical research. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders, anti-infectives, and other therapeutic areas.
• Agrochemical Synthesis: Used in the research and development of new generation pesticides, herbicides, and fungicides, leveraging the thiophene scaffold for bioactivity.
• Material Science Research: Acts as a monomer or functional unit in the development of conductive polymers, organic semiconductors, and other advanced electronic materials.
• Chemical Biology & Proteomics: Employed as a specialty reagent for designing molecular probes, enzyme inhibitors, and tools for studying biological pathways.
• Dye & Pigment Intermediate: Utilized in the synthesis of specialized dyes, pigments, and optical brighteners due to its heterocyclic structure.
• Custom Synthesis & Contract Manufacturing: A vital starting material for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) producing bespoke compounds for client projects.

Basic Information

Product Name	2-Thiophenecarboxylicacid,3-Amino-5-Methoxy-,Ethylester(9Ci)
CAS No.	460355-90-2
Molecular Formula	C9H11NO3S
Molecular Weight	213.25 g/mol
Synonyms	Ethyl 3-amino-5-methoxythiophene-2-carboxylate; 3-Amino-5-methoxy-2-thiophenecarboxylic acid ethyl ester; 2-Thiophenecarboxylic acid, 3-amino-5-methoxy-, ethyl ester; 5-Methoxy-3-aminothiophene-2-carboxylic acid ethyl ester; 3-Amino-5-methoxy-thiophene-2-carboxylic acid ethyl ester; Ethyl 3-amino-5-methoxythiophene-2-carboxylate (9CI); 460355-90-2
EINECS	Contact for details

Quality Control

Our 2-Thiophenecarboxylicacid,3-Amino-5-Methoxy-,Ethylester(9Ci) is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical specifications. Our quality commitment supports applications requiring high-purity intermediates for research and development.

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). This compound is hygroscopic (moisture-sensitive); ensure containers are sealed tightly after each use to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

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% (Area %)
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.