Description

4,6-Dihydrothieno[3,4-B]Thiophene-2-Carboxylic Acid is a high-purity heterocyclic carboxylic acid building block of significant interest in advanced organic synthesis. This compound matters as a critical precursor for the development of novel materials, particularly in the field of organic electronics and pharmaceuticals. It is primarily needed by R&D chemists and process development scientists in the fine chemical, pharmaceutical, and material science industries for constructing complex molecular architectures.

Application

• Organic Semiconductor Synthesis: A key monomer for constructing conjugated polymers and small molecules used in organic field-effect transistors (OFETs) and organic photovoltaics (OPVs).
• Pharmaceutical Intermediates: Serves as a versatile building block in the synthesis of novel active pharmaceutical ingredients (APIs) with potential biological activity.
• Ligand and Catalyst Development: Used to create novel chelating ligands for catalysis and metal-organic frameworks (MOFs).
• Functional Material Research: Employed in the development of electrochromic materials, sensors, and non-linear optical (NLO) materials.
• Academic and Industrial R&D: A valuable reagent for exploratory chemistry in universities and corporate research centers focusing on heterocyclic chemistry.

Basic Information

Item	Details
Product Name	4,6-Dihydrothieno[3,4-B]Thiophene-2-Carboxylic Acid
CAS No.	7712-05-2
Molecular Formula	C7H6O2S2
Molecular Weight	186.25 g/mol
Synonyms	4,6-Dihydrothieno[3,4-b]thiophene-2-carboxylic acid; Thieno[3,4-b]thiophene-2-carboxylic acid, 4,6-dihydro-; 2-Carboxy-4,6-dihydrothieno[3,4-b]thiophene; 4,6-Dihydro-2-thieno[3,4-b]thiophenecarboxylic acid; 7712-05-2; Thienothiophene carboxylic acid derivative
EINECS	Contact for details

Quality Control

Our 4,6-Dihydrothieno[3,4-B]Thiophene-2-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR/IR for structural confirmation, to ensure it meets the high standards required for research and development applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment.

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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed in a dry environment to prevent degradation. Keep away from strong acids and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Area %)
Water Content (KF)	≤ 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.