Description

2-tert-Butyl 4-Ethyl 5-Amino-3-Methylthiophene-2,4-Dicarboxylate is a high-purity, multifunctional thiophene derivative serving as a critical advanced intermediate in modern organic synthesis. Its value lies in its unique molecular architecture, which provides multiple reactive sites for constructing complex heterocyclic systems essential for pharmaceutical and agrochemical research. This compound is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key building block for the synthesis of novel drug candidates, particularly in the development of molecules with thiophene-based cores for therapeutic applications.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides, herbicides, and fungicides, where the thiophene moiety can contribute to biological activity.
• Material Science Research: Serves as a precursor for functional organic materials, including organic semiconductors, conductive polymers, and dyes, leveraging its electron-rich thiophene structure.
• Chemical Research & Development: Employed as a versatile scaffold in medicinal chemistry and process chemistry for exploring new synthetic routes and creating compound libraries.
• Fine Chemical Production: Acts as an intermediate in the multi-step synthesis of complex, high-value specialty chemicals for various industrial applications.

Basic Information

Product Name	2-tert-Butyl 4-Ethyl 5-Amino-3-Methylthiophene-2,4-Dicarboxylate
CAS No.	257610-86-9
Molecular Formula	C15H23NO4S
Molecular Weight	313.41 g/mol
Synonyms	5-Amino-3-methylthiophene-2,4-dicarboxylic acid 2-tert-butyl 4-ethyl ester; 2-(tert-Butyl) 4-ethyl 5-amino-3-methylthiophene-2,4-dicarboxylate; Ethyl 5-amino-2-((tert-butoxy)carbonyl)-3-methylthiophene-4-carboxylate; 2-tert-Butoxycarbonyl-4-ethoxycarbonyl-5-amino-3-methylthiophene; 5-Amino-3-methyl-2,4-thiophenedicarboxylic Acid 2-(1,1-Dimethylethyl) 4-Ethyl Ester; ATB-EMT; CAS 257610-86-9
EINECS	Contact for details

Quality Control

Our 2-tert-Butyl 4-Ethyl 5-Amino-3-Methylthiophene-2,4-Dicarboxylate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to confirm identity and purity. Certificates of Analysis (COA) detailing all specifications are 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 area at a controlled room temperature (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.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥ 98.0%
Purity (HPLC, Area %)	≥ 99.0%
Water Content (KF)	≤ 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.