Description

5-Amino-3-Methyl-2-Thiophenecarboxylic Acid Ethyl Ester is a high-purity, functionalized thiophene derivative that serves as a critical building block in advanced organic synthesis. Its value lies in providing a versatile scaffold for constructing complex heterocyclic compounds, particularly in pharmaceutical research and development. This intermediate is essential for chemists and manufacturers in the pharmaceutical, agrochemical, and material science industries who require reliable, high-quality raw materials for their synthetic processes.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs targeting the central nervous system and other therapeutic areas.
• Agrochemical Synthesis: Used in the development of novel pesticides, herbicides, and fungicides due to its bioactive thiophene core.
• Material Science Research: Serves as a monomer or functional unit in the development of conductive polymers, organic semiconductors, and advanced organic electronic materials.
• Chemical Research & Development: Employed as a versatile building block for constructing complex heterocyclic libraries for high-throughput screening and drug discovery.
• Dye and Pigment Industry: Acts as an intermediate in the synthesis of specialized dyes and organic pigments.

Basic Information

Product Name	5-Amino-3-Methyl-2-Thiophenecarboxylic Acid Ethyl Ester
CAS No.	88796-28-5
Molecular Formula	C9H13NO2S
Molecular Weight	199.27 g/mol
Synonyms	Ethyl 5-Amino-3-Methylthiophene-2-carboxylate; 5-Amino-3-methyl-2-thiophenecarboxylic acid ethyl ester; 3-Methyl-5-amino-2-thiophenecarboxylic acid ethyl ester; 2-Thiophenecarboxylic acid, 5-amino-3-methyl-, ethyl ester; Ethyl 3-methyl-5-aminothiophene-2-carboxylate; 5-Amino-3-methylthiophene-2-carboxylic acid ethyl ester
EINECS	Contact for details

Quality Control

Our 5-Amino-3-Methyl-2-Thiophenecarboxylic Acid Ethyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure high purity and consistent performance. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specifications and test results. Our quality commitment supports applications requiring GMP-grade intermediates and research chemicals.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, the container should be opaque or stored in dark conditions.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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