Description

1-Chloronaphtho[2,1-B]Thiophene-2-Carboxylic Acid is a high-value, multi-ring heterocyclic building block featuring a fused naphthalene-thiophene core. This compound matters for its role as a critical synthetic intermediate in the development of advanced organic electronic materials and active pharmaceutical ingredients (APIs). Industrial researchers and process chemists in the pharmaceutical, agrochemical, and specialty chemical sectors require this precise molecule to construct complex molecular architectures with tailored properties.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly those targeting specific biological pathways where the fused ring system is advantageous.
• Organic Semiconductor Material: Used in the research and development of organic field-effect transistors (OFETs), organic photovoltaics (OPVs), and light-emitting diodes (OLEDs) due to its extended π-conjugation.
• Agrochemical Synthesis: Acts as a building block for creating new generations of herbicides, fungicides, or insecticides with enhanced efficacy and selectivity.
• Ligand and Catalyst Development: The carboxylic acid functionality allows for derivatization into complex ligands for catalysis or metal-organic frameworks (MOFs).
• Dye and Pigment Chemistry: Employed in the synthesis of specialized dyes and pigments where the chloronaphthothiophene structure imparts unique color and stability properties.
• Material Science Research: Fundamental research into novel conjugated polymers and small molecules for advanced material applications.

Basic Information

Product Name	1-Chloronaphtho[2,1-B]Thiophene-2-Carboxylic Acid
CAS No.	85589-69-1
Molecular Formula	C₁₃H₇ClO₂S
Molecular Weight	262.71 g/mol
Synonyms	1-Chloronaphtho[2,1-b]thiophene-2-carboxylic acid; 2-Naphtho[2,1-b]thiophenecarboxylic acid, 1-chloro-; 1-Chlorobenzo[4,5]thieno[3,2-g]benzofuran-2-carboxylic acid; 1-Chloronaphtho[2,1-b]thiophene-2-carboxylate; 1-Chloro-2-naphtho[2,1-b]thiophenecarboxylic acid; 1-Chloronaphthothiophene-2-carboxylic acid; 1-Cl-NTCA
EINECS	Contact for details

Quality Control

Every batch of 1-Chloronaphtho[2,1-B]Thiophene-2-Carboxylic Acid undergoes rigorous analytical testing to ensure identity, purity, and consistency. Our quality management system is designed to meet the stringent requirements of research and development as well as scale-up processes. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to support your quality and regulatory documentation.

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 minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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