Description

4-Methyl-3-Amino-2-(Methoxycarbonyl)-4,5-Dihydrothiophene is a specialized heterocyclic building block of significant interest in advanced organic synthesis. This compound matters for its role as a key intermediate in the development of complex molecules, particularly in the pharmaceutical and agrochemical sectors. Industries requiring high-purity intermediates for research and production, such as medicinal chemistry and fine chemical manufacturing, are the primary users of this material.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly those containing functionalized thiophene scaffolds.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides, leveraging its unique heterocyclic structure.
• Material Science Research: Acts as a building block for creating novel organic electronic materials or ligands for catalysis due to its electron-rich thiophene core and functional groups.
• Fine Chemical Production: Employed in custom synthesis and contract manufacturing for producing high-value, complex organic compounds.
• Academic & R&D: Utilized in university and industrial research laboratories for methodological studies and exploring new chemical reactions.

Basic Information

Product Name	4-Methyl-3-Amino-2-(Methoxycarbonyl)-4,5-Dihydrothiophene
CAS No.	125089-02-3
Molecular Formula	C8H11NO2S
Molecular Weight	185.24 g/mol
Synonyms	Methyl 3-Amino-4-methyl-4,5-dihydrothiophene-2-carboxylate; 4,5-Dihydro-4-methyl-3-amino-2-thiophenecarboxylic acid methyl ester; 3-Amino-4-methyl-4,5-dihydrothiophene-2-carboxylic acid methyl ester; 2-Carbomethoxy-3-amino-4-methyl-4,5-dihydrothiophene; 4-Methyl-3-amino-2-methoxycarbonyl-4,5-dihydrothiophene; 4,5-Dihydro-4-methyl-3-amino-2-methoxycarbonylthiophene
EINECS	Contact for details

Quality Control

Our 4-Methyl-3-Amino-2-(Methoxycarbonyl)-4,5-Dihydrothiophene is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all specifications and test results. Our quality commitment aligns with cGMP principles for pharmaceutical intermediates, ensuring reliability for your critical synthesis workflows.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to exclude moisture. For long-term storage, consider the use of desiccants or an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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