Description

5-(5-Bromo-2-Thienyl)-1H-Pyrazole-3-Carboxylic Acid is a high-purity heterocyclic building block of significant interest in advanced organic synthesis. This compound matters as a versatile intermediate for constructing complex molecular architectures, particularly in pharmaceutical research and development. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for creating novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the development of novel drug candidates, particularly for kinase inhibitors and other small-molecule therapeutics.
• Agrochemical Research: Used in the synthesis of new active ingredients for crop protection products, leveraging its heterocyclic core.
• Material Science Precursor: Acts as a building block for organic electronic materials, such as organic semiconductors and light-emitting diodes (OLEDs).
• Chemical Biology Probe Development: Employed in the design and synthesis of molecular probes for studying biological pathways and target engagement.
• Custom Synthesis & Contract Manufacturing: A critical starting material for custom synthesis projects requiring functionalized pyrazole-thiophene hybrids.
• Academic & Institutional Research: Used in universities and research institutes for methodological studies and exploring new chemical reactions.

Basic Information

Product Name	5-(5-Bromo-2-Thienyl)-1H-Pyrazole-3-Carboxylic Acid
CAS No.	1038558-41-6
Molecular Formula	C8H5BrN2O2S
Molecular Weight	273.11 g/mol
Synonyms	5-(5-Bromo-2-thienyl)-1H-pyrazole-3-carboxylic acid; 1H-Pyrazole-3-carboxylic acid, 5-(5-bromo-2-thienyl)-; 5-(5-Bromothiophen-2-yl)-1H-pyrazole-3-carboxylic acid; 5-(5-Bromo-thiophen-2-yl)-1H-pyrazole-3-carboxylic acid; 1038558-41-6; 5-(5-Bromo-2-thienyl)-3-pyrazolecarboxylic acid; 5-(5-Bromothien-2-yl)-1H-pyrazole-3-carboxylic acid
EINECS	Contact for details

Quality Control

Our 5-(5-Bromo-2-Thienyl)-1H-Pyrazole-3-Carboxylic Acid is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity, suitable for demanding research and development applications. We provide comprehensive Certificates of Analysis (COA) with each batch, detailing purity, identity, and impurity profiles. Our quality management system adheres to cGMP principles where applicable, supporting our commitment to reliable supply and technical data integrity for our global B2B partners.

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 (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent degradation from atmospheric moisture. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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