Description

(E)-n-(Pyridin-4-Ylmethylene)-3-(Thiophen-2-Yl)-1H-Pyrazole-5-Carbohydrazide is a high-purity, heterocyclic organic compound with the CAS registry number 1285642-51-4. This specialized chemical serves as a critical advanced intermediate or building block in the synthesis of novel active pharmaceutical ingredients (APIs) and functional materials. It is primarily required by pharmaceutical R&D teams and fine chemical manufacturers engaged in developing new therapeutic agents and agrochemicals.

Application

• Pharmaceutical Intermediate: A key precursor in the research and synthesis of new drug candidates, particularly in oncology and CNS therapeutic areas.
• Agrochemical Research: Used as a building block for developing novel pesticides and herbicides with specific modes of action.
• Material Science: Serves as a monomer or functional unit in the creation of specialty polymers and organic electronic materials.
• Chemical Biology: Employed in the design and synthesis of molecular probes and enzyme inhibitors for biochemical research.
• Academic & Contract Research: Utilized in university laboratories and CROs (Contract Research Organizations) for exploratory synthetic chemistry projects.
• Dye & Pigment Synthesis: Acts as an intermediate for producing complex heterocyclic dyes and colorants.

Basic Information

Product Name	(E)-n-(Pyridin-4-Ylmethylene)-3-(Thiophen-2-Yl)-1H-Pyrazole-5-Carbohydrazide
CAS No.	1285642-51-4
Molecular Formula	C15H11N5OS
Molecular Weight	309.35 g/mol
Synonyms	(E)-N-((Pyridin-4-yl)methylene)-3-(thiophen-2-yl)-1H-pyrazole-5-carbohydrazide; (E)-N-(Pyridin-4-ylmethylene)-3-(thiophen-2-yl)-1H-pyrazole-5-carbohydrazide; (E)-N-(4-Pyridylmethylene)-3-(2-thienyl)-1H-pyrazole-5-carbohydrazide; 3-(Thiophen-2-yl)-1H-pyrazole-5-carboxylic acid (E)-[(pyridin-4-yl)methylene]hydrazide; 1285642-51-4; Pyrazole-thiophene-pyridine carbohydrazide derivative
EINECS	Contact for details

Quality Control

Our (E)-n-(Pyridin-4-Ylmethylene)-3-(Thiophen-2-Yl)-1H-Pyrazole-5-Carbohydrazide 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. A comprehensive Certificate of Analysis (COA) detailing identity, purity, 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 area at a controlled room temperature (15-25°C). This compound is light-sensitive and should be handled under appropriate conditions to maintain stability.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
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.