Description

3-Methyl-5-(2-Thienyl)-1H-Pyrazole CAS NO 31618-80-1 is a heterocyclic organic compound featuring a pyrazole core substituted with a methyl group and a thienyl moiety. This unique molecular architecture makes it a valuable pharmaceutical intermediate and a versatile building block in advanced organic synthesis. It is primarily utilized by research institutions and chemical manufacturers in the development of active pharmaceutical ingredients (APIs), agrochemicals, and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and inflammatory pathways.
• Agrochemical Research: Serves as a core structure for developing new herbicides, fungicides, and insecticides with potential novel modes of action.
• Material Science: Used in the research and development of organic electronic materials, such as organic light-emitting diodes (OLEDs) and semiconductors, due to its conjugated system.
• Chemical Synthesis Building Block: Employed in heterocyclic and medicinal chemistry for constructing complex molecules via cross-coupling and cyclization reactions.
• Ligand in Catalysis: Can be utilized to develop novel ligands for transition metal catalysts used in asymmetric synthesis.
• Academic & Industrial R&D: A fundamental compound for methodological studies and exploring new chemical spaces in organic chemistry laboratories.

Basic Information

Product Name	3-Methyl-5-(2-Thienyl)-1H-Pyrazole
CAS No.	31618-80-1
Molecular Formula	C8H8N2S
Molecular Weight	164.23 g/mol
Synonyms	3-Methyl-5-(thiophen-2-yl)-1H-pyrazole; 5-(2-Thienyl)-3-methyl-1H-pyrazole; 1H-Pyrazole, 3-methyl-5-(2-thienyl)-; 3-Methyl-5-(2-thienyl)pyrazole; 5-(Thiophen-2-yl)-3-methyl-1H-pyrazole; 2-(3-Methyl-1H-pyrazol-5-yl)thiophene
EINECS	Contact for details

Quality Control

Our 3-Methyl-5-(2-Thienyl)-1H-Pyrazole is manufactured under strict quality management systems. Every 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 industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. For long-term storage, consider an inert atmosphere to ensure optimal stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.