Description

5-[Pyridin-2(1H)-Ylidene]-1,3-Cyclopentadiene-1,2,3,4-Tetracarboxylic Acid Tetramethyl Ester is a specialized organic compound that serves as a key intermediate in advanced chemical synthesis. This product is valued for its unique conjugated structure, which makes it a versatile building block for creating complex molecular architectures. It is primarily sought by research institutions and industrial R&D departments focused on developing novel materials, pharmaceuticals, and functional dyes.

Application

• Pharmaceutical Intermediate: Used in the research and synthesis of novel active pharmaceutical ingredients (APIs), particularly those requiring complex heterocyclic frameworks.
• Organic Electronic Materials: Acts as a precursor or dopant in the development of organic semiconductors, OLEDs, and photovoltaic materials due to its extended π-conjugation system.
• Coordination Chemistry & Ligand Synthesis: Serves as a starting material for creating polydentate ligands used in catalysis and metal-organic frameworks (MOFs).
• Dye & Pigment Research: Utilized in the development of specialized dyes and colorants, leveraging its fused ring system for unique optical properties.
• Academic & Industrial R&D: A critical reagent for methodological studies in organic synthesis, including cycloaddition reactions and the construction of polycyclic compounds.

Basic Information

Item	Details
Product Name	5-[Pyridin-2(1H)-Ylidene]-1,3-Cyclopentadiene-1,2,3,4-Tetracarboxylic Acid Tetramethyl Ester
CAS No.	71127-24-7
Molecular Formula	C20H17NO8
Molecular Weight	399.35 g/mol
Synonyms	1,2,3,4-Cyclopentanetetracarboxylic acid, 5-(2-pyridinylidene)-, tetramethyl ester; Tetramethyl 5-(pyridin-2-ylidene)cyclopenta-1,3-diene-1,2,3,4-tetracarboxylate; 5-(Pyridin-2-ylidene)cyclopenta-1,3-diene-1,2,3,4-tetracarboxylic acid tetramethyl ester; 2-Pyridylidenecyclopentadienetetracarboxylic acid tetramethyl ester
EINECS	Contact for details

Quality Control

Our production of 5-[Pyridin-2(1H)-Ylidene]-1,3-Cyclopentadiene-1,2,3,4-Tetracarboxylic Acid Tetramethyl Ester adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure consistency and reliability for your critical research and development projects. A Certificate of Analysis (COA) detailing all specifications 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 (typically 15-25°C). Keep away from incompatible materials such as strong oxidizing agents. For long-term storage, consider an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Yellow to orange 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.