Description

Diethyl 2-[(3-Thienylamino)Methylidene]Malonate, 97+% is a high-purity specialty chemical building block, primarily valued for its role as a versatile intermediate in heterocyclic synthesis. Its molecular structure, featuring both a thienylamino group and a reactive malonate ester, makes it a critical precursor for constructing complex pharmacologically active molecules. This compound is essential for research and development chemists in the pharmaceutical and agrochemical industries, where it is used to create novel compounds with targeted biological activities.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates, particularly those containing thiophene or fused heterocyclic ring systems.
• Agrochemical Synthesis: Used in the research and development of new active ingredients for crop protection products, such as herbicides and fungicides.
• Organic Synthesis Reagent: Serves as a versatile precursor for Knoevenagel condensation and other cyclization reactions to form complex organic structures.
• Material Science Research: Investigated as a monomer or intermediate for the development of advanced organic electronic materials and functional polymers.
• Dye and Pigment Intermediate: Utilized in the synthesis of specialized dyes and pigments where the thiophene moiety imparts specific color or stability properties.

Basic Information

Product Name	Diethyl 2-[(3-Thienylamino)Methylidene]Malonate, 97+%
CAS No.	65076-02-0
Molecular Formula	C₁₂H₁₅NO₄S
Molecular Weight	269.32 g/mol
Synonyms	Diethyl (3-aminothiophen-2-ylmethylene)malonate; Diethyl 2-[(3-aminothien-2-yl)methylene]malonate; 2-[(3-Aminothiophen-2-yl)methylene]malonic acid diethyl ester; Ethyl (3-aminothiophen-2-ylmethylene)malonate; 65076-02-0; Propanedioic acid, 2-[(3-amino-2-thienyl)methylene]-, 1,3-diethyl ester
EINECS	Contact for details

Quality Control

Our Diethyl 2-[(3-Thienylamino)Methylidene]Malonate is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed to confirm identity and meets the specified 97+% minimum purity. Certificates of Analysis (COA) detailing specific test results are provided with every shipment to support your quality assurance and regulatory documentation needs.

Storage

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

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.