Description

2-Amino-4-Ethyl-5-Methyl-Thiophene-3-Carboxylic Acid Ethyl Ester is a high-value heterocyclic building block, specifically a substituted thiophene derivative, essential for advanced organic synthesis. Its core value lies in its versatile amino and ester functional groups, which enable its use as a critical precursor in the development of complex pharmacologically active molecules. This compound is primarily needed by research institutions and manufacturers in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key synthon for the development of novel drug candidates, particularly in therapeutic areas requiring complex heterocyclic scaffolds.
• Agrochemical Synthesis: Serves as a building block for creating advanced pesticides, herbicides, and fungicides with specific activity profiles.
• Material Science Research: Used in the development of organic semiconductors, conductive polymers, and other functional materials due to the thiophene core.
• Dye and Pigment Manufacturing: Acts as an intermediate for synthesizing specialized dyes and organic pigments.
• Chemical Research & Development: Employed in academic and industrial R&D for methodological studies and the creation of new chemical libraries.
• Fine Chemical Production: Integral to the multi-step synthesis of complex, high-value specialty chemicals for various industrial applications.

Basic Information

Product Name	2-Amino-4-Ethyl-5-Methyl-Thiophene-3-Carboxylic Acid Ethyl Ester
CAS No.	82546-91-6
Molecular Formula	C11H17NO2S
Molecular Weight	227.32 g/mol
Synonyms	Ethyl 2-Amino-4-ethyl-5-methylthiophene-3-carboxylate; 2-Amino-4-ethyl-5-methyl-3-thiophenecarboxylic Acid Ethyl Ester; 4-Ethyl-5-methyl-2-aminothiophene-3-carboxylic Acid Ethyl Ester; 3-Thiophenecarboxylic acid, 2-amino-4-ethyl-5-methyl-, ethyl ester; 82546-91-6; AE5MTCAE; Thiophene building block CAS 82546-91-6
EINECS	Contact for details

Quality Control

Our 2-Amino-4-Ethyl-5-Methyl-Thiophene-3-Carboxylic Acid Ethyl Ester is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for synthetic applications. Certificates of Analysis (COA) documenting all critical quality attributes are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from strong oxidizing agents and incompatible materials. For long-term storage, consider an inert atmosphere to maintain optimal stability.

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%
Heavy Metals	≤ 20 ppm

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