Description

Thiophene-2,3-Diamine is a high-purity organic intermediate featuring a reactive diamine-substituted thiophene core. This compound is essential for the synthesis of complex heterocyclic systems, offering a versatile building block for advanced material and pharmaceutical research. It is primarily utilized by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries to develop novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of thieno[2,3-d]pyrimidine, thieno[3,2-d]pyrimidine, and other fused heterocyclic scaffolds with potential biological activity.
• Agrochemical Synthesis: Building block for developing novel herbicides, fungicides, and insecticides that incorporate the thiophene moiety for enhanced efficacy.
• Organic Electronic Materials: Used in the research and development of conjugated polymers and small molecules for applications in organic light-emitting diodes (OLEDs) and organic photovoltaics (OPVs).
• Coordination Chemistry & Ligand Synthesis: Serves as a chelating ligand for transition metals, useful in catalysis and the creation of metal-organic frameworks (MOFs).
• Dye & Pigment Intermediate: Employed in the synthesis of specialized dyes and pigments where the thiophene ring contributes to color and stability properties.
• Cross-coupling Reactions: A valuable substrate for Suzuki, Buchwald-Hartwig, and other palladium-catalyzed cross-coupling reactions to create complex biaryl structures.

Basic Information

Product Name	Thiophene-2,3-Diamine
CAS No.	78648-62-1
Molecular Formula	C4H6N2S
Molecular Weight	114.17 g/mol
Synonyms	2,3-Diaminothiophene; 2,3-Thiophenediamine; 1,2-Diamino-3-thia-cyclopenta-1,3-diene; 3-Thiophenediamine; 2,3-Diamino-thiophene; 2,3-Diamino-thiophene-1,1-dioxide (related); Thieno[2,3-d]pyrimidine precursor
EINECS	Contact for details

Quality Control

Our Thiophene-2,3-Diamine is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its light-sensitive nature, prolonged exposure to light should be avoided. Keep container tightly sealed when not in use to minimize exposure to air and moisture.

Specification

Item	Specification
Appearance	Light yellow to brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%

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