Description

2,3,4,5-Tetraethyl-2'H-Spiro[Cyclopenta[2,4]Diene-1,1'-Naphthalene]-2'-Carboxylic Acid is a sophisticated spirocyclic organic compound with the CAS number 905311-34-4, serving as a high-value chemical intermediate for advanced synthesis. Its unique fused-ring structure makes it a critical building block for developing novel pharmaceuticals and functional materials. This product is essential for R&D and production teams in the fine chemical, agrochemical, and material science sectors seeking to create complex molecular architectures.

Application

This specialized spirocyclic carboxylic acid is utilized in advanced chemical synthesis and research. Key applications include:

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel active pharmaceutical ingredients (APIs) with complex spirocyclic cores.
• Agrochemical Research: Used in developing new-generation herbicides, fungicides, and plant growth regulators with unique modes of action.
• Material Science: Acts as a monomer or building block for creating advanced polymers, liquid crystals, or organic electronic materials.
• Organic Synthesis: Employed in academic and industrial research for constructing complex polycyclic frameworks and testing new catalytic methodologies.
• Ligand Synthesis: Useful for preparing sophisticated chiral or polydentate ligands for catalysis and metal-organic frameworks (MOFs).

Basic Information

Product Name	2,3,4,5-Tetraethyl-2'H-Spiro[Cyclopenta[2,4]Diene-1,1'-Naphthalene]-2'-Carboxylic Acid
CAS No.	905311-34-4
Molecular Formula	C25H28O2
Molecular Weight	360.49 g/mol
Synonyms	2'-Carboxyspiro[cyclopenta[2,4]diene-1,1'-naphthalene]-2,3,4,5-tetraethyl; 2,3,4,5-Tetraethylspiro[cyclopenta[2,4]diene-1,1'-naphthalene]-2'-carboxylic acid; Spiro[cyclopenta[2,4]diene-1,1'-naphthalene]-2'-carboxylic acid, 2,3,4,5-tetraethyl-; 905311-34-4; Tetraethyl spirocyclic carboxylic acid; Spirocyclic tetraethyl naphthalene carboxylic acid
EINECS	Contact for details

Quality Control

Our production of 2,3,4,5-Tetraethyl-2'H-Spiro[Cyclopenta[2,4]Diene-1,1'-Naphthalene]-2'-Carboxylic Acid adheres to stringent quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and can be tailored to meet specific customer or regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). The compound may be sensitive to prolonged exposure to heat, moisture, and strong oxidizing agents. Keep away from incompatible materials.

Specification

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