Description

3-Thiophenecarboxylicacid,2-Amino-5-Hydroxy-4-Methyl-,Ethylester(9Ci) is a multifunctional heterocyclic building block of significant interest in advanced organic synthesis. Its unique structure, featuring amino, hydroxy, and ester functionalities on a thiophene core, makes it a versatile intermediate for constructing complex molecular architectures. This compound is particularly valuable for researchers and manufacturers in the pharmaceutical and agrochemical sectors, where it serves as a key precursor for the development of novel active ingredients and specialty chemicals.

Application

• Pharmaceutical Intermediate: A critical building block for the synthesis of novel drug candidates, particularly in therapeutic areas requiring complex heterocyclic scaffolds.
• Agrochemical Synthesis: Used in the research and development of new-generation pesticides and herbicides, leveraging its bioactive thiophene structure.
• Material Science Research: Serves as a monomer or functionalizing agent in the development of advanced polymers and conductive materials.
• Organic Light-Emitting Diodes (OLEDs): Investigated as a precursor for electron-transport or emissive layer materials in electronic displays and lighting.
• Dye and Pigment Intermediate: Utilized in the synthesis of specialized dyes and pigments due to its chromophoric thiophene ring and modifiable functional groups.
• Chemical Research & Development: A valuable reagent for academic and industrial R&D focused on heterocyclic chemistry and method development.

Basic Information

Product Name	3-Thiophenecarboxylicacid,2-Amino-5-Hydroxy-4-Methyl-,Ethylester(9Ci)
CAS No.	265650-14-4
Molecular Formula	C9H11NO3S
Molecular Weight	213.25 g/mol
Synonyms	Ethyl 2-Amino-5-hydroxy-4-methylthiophene-3-carboxylate; 2-Amino-5-hydroxy-4-methyl-3-thiophenecarboxylic Acid Ethyl Ester; 2-Amino-5-hydroxy-4-methylthiophene-3-carboxylic acid ethyl ester; 4-Methyl-2-amino-5-hydroxythiophene-3-carboxylic acid ethyl ester; 3-Thiophenecarboxylic acid, 2-amino-5-hydroxy-4-methyl-, ethyl ester; 265650-14-4; AI3-52362
EINECS	Contact for details

Quality Control

Our production of 3-Thiophenecarboxylicacid,2-Amino-5-Hydroxy-4-Methyl-,Ethylester(9Ci) adheres to stringent internal quality standards to ensure batch-to-batch consistency and reliability for your synthetic processes. Each lot is thoroughly analyzed using advanced techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory 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 (typically 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. 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%
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.