Description

Ethyl 5-Thien-2-Yl-1H-Pyrazole-3-Carboxylate is a high-purity heterocyclic organic compound that serves as a critical building block in advanced chemical synthesis. Its unique molecular structure, combining pyrazole and thiophene moieties, makes it a versatile intermediate for developing novel active pharmaceutical ingredients (APIs) and functional materials. This compound is essential for research and production in the pharmaceutical, agrochemical, and specialty chemical industries, where precise molecular architecture is required.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders, inflammation, and metabolic diseases.
• Agrochemical Research: Used as a core scaffold for developing new-generation herbicides, fungicides, and insecticides with enhanced efficacy and selectivity.
• Material Science: Serves as a monomer or additive in the production of advanced polymers, liquid crystals, and organic semiconductors (OLEDs).
• Chemical Synthesis: A versatile building block for constructing complex heterocyclic systems in medicinal and combinatorial chemistry.
• Academic & R&D: Utilized in university and corporate research laboratories for investigating new chemical reactions and biological activities.

Basic Information

Product Name	Ethyl 5-Thien-2-Yl-1H-Pyrazole-3-Carboxylate
CAS No.	121195-03-7
Molecular Formula	C10H10N2O2S
Molecular Weight	222.26 g/mol
Synonyms	Ethyl 5-(thiophen-2-yl)-1H-pyrazole-3-carboxylate; 5-(2-Thienyl)-1H-pyrazole-3-carboxylic acid ethyl ester; 1H-Pyrazole-3-carboxylic acid, 5-(2-thienyl)-, ethyl ester; Ethyl 5-(2-thienyl)-1H-pyrazole-3-carboxylate; 121195-03-7; 5-Thiophen-2-yl-1H-pyrazole-3-carboxylic acid ethyl ester
EINECS	Contact for details

Quality Control

Our Ethyl 5-Thien-2-Yl-1H-Pyrazole-3-Carboxylate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis. We provide Certificates of Analysis (COA) with every shipment, detailing all specifications and test results to ensure traceability and compliance with your project requirements.

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 heat, sparks, and open flame. The compound is light-sensitive and should be handled under appropriate conditions to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residual Solvents (GC)	Meets ICH guidelines

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