Description

3-(3-Thienyl)-1H-Pyrazole-4-Carboxylic Acid is a high-purity heterocyclic carboxylic acid building block of significant interest in advanced organic synthesis. This compound matters as a versatile intermediate for constructing complex molecular architectures, particularly in pharmaceutical and agrochemical research. It is primarily needed by R&D chemists and process development scientists in the fine chemical, pharmaceutical, and agrochemical industries for the development of new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and inflammatory diseases.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its heterocyclic core for bioactivity.
• Material Science: Serves as a precursor for organic semiconductors, conductive polymers, and ligands for metal-organic frameworks (MOFs) due to the thienyl and pyrazole motifs.
• Chemical Biology: Employed in the design and synthesis of molecular probes, enzyme inhibitors, and tool compounds for biological pathway analysis.
• Academic & Contract Research: Essential for methodological development in organic chemistry, including cross-coupling reactions and heterocycle functionalization studies.

Basic Information

Product Name	3-(3-Thienyl)-1H-Pyrazole-4-Carboxylic Acid
CAS No.	1249642-34-9
Molecular Formula	C8H6N2O2S
Molecular Weight	194.21 g/mol
Synonyms	3-(Thiophen-3-yl)-1H-pyrazole-4-carboxylic acid; 3-(3-Thienyl)-1H-pyrazole-4-carboxylic acid; 1H-Pyrazole-4-carboxylic acid, 3-(3-thienyl)-; 3-Thiophen-3-yl-1H-pyrazole-4-carboxylic acid; 4-Carboxy-3-(3-thienyl)pyrazole; 3-(3-Thienyl)pyrazole-4-carboxylic acid
EINECS	Contact for details

Quality Control

Our 3-(3-Thienyl)-1H-Pyrazole-4-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. Certificates of Analysis (COA) detailing batch-specific results are available upon request to support your quality assurance and regulatory documentation.

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). Keep away from strong acids and organic solvents. For long-term storage, consider storing under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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