Description

2-Thiophen-2-Yl-Quinoxaline-5-Carboxylic Acid CAS NO 904813-02-1 is a high-purity, functionalized quinoxaline derivative serving as a critical advanced intermediate in organic synthesis. Its unique heterocyclic structure, incorporating both thiophene and carboxylic acid moieties, makes it a versatile building block for the development of novel compounds with tailored properties. This product is essential for research and development chemists in the pharmaceutical, agrochemical, and material science industries seeking to create new active ingredients or functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of potential drug candidates, particularly for applications in oncology, neurology, and as enzyme inhibitors.
• Agrochemical Research: Used in developing novel active ingredients for crop protection products, such as herbicides, fungicides, and insecticides.
• Material Science & OLED Development: Serves as a building block for creating organic semiconductors, light-emitting materials, and electron-transport layers in electronic devices.
• Ligand Synthesis for Catalysis: Utilized to construct complex chelating ligands for transition metal catalysts used in fine chemical synthesis.
• Dye & Pigment Intermediate: Acts as a precursor for the development of specialized dyes and pigments with specific light-absorption or emission characteristics.
• Academic & Contract Research: A valuable reagent for universities and CROs (Contract Research Organizations) exploring new chemical spaces and reaction methodologies.

Basic Information

Product Name	2-Thiophen-2-Yl-Quinoxaline-5-Carboxylic Acid
CAS No.	904813-02-1
Molecular Formula	C15H10N2O2S
Molecular Weight	282.32 g/mol
Synonyms	2-(Thiophen-2-yl)quinoxaline-5-carboxylic acid; Quinoxaline-5-carboxylic acid, 2-(2-thienyl)-; 2-(2-Thienyl)quinoxaline-5-carboxylic acid; 2-Thien-2-yl-quinoxaline-5-carboxylic acid; TQCA; 2-(Thiophene-2-yl)quinoxaline-5-carboxylic acid; 2-(2-Thiophenyl)quinoxaline-5-carboxylic acid
EINECS	Contact for details

Quality Control

Our 2-Thiophen-2-Yl-Quinoxaline-5-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, 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 place at room temperature (15-25°C). The product is sensitive to strong acids and should be kept away from incompatible materials. For long-term storage, consider storing under an inert atmosphere.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Single Unknown Impurity (HPLC)	≤ 1.0%
Total Impurities (HPLC)	≤ 3.0%

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