Description

Spiro[1,3-Dioxolane-2,9'-[9H]Fluorene]-4,5-Dicarboxylic Acid, Diethyl Ester is a high-purity, multifunctional spirocyclic organic compound that serves as a critical advanced intermediate in sophisticated chemical synthesis. Its unique molecular architecture, featuring a fluorene core fused with a dioxolane ring, provides a rigid, three-dimensional scaffold essential for developing high-performance materials and active pharmaceutical ingredients (APIs). This compound is primarily sought by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries who require precise building blocks for complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key chiral building block in the synthesis of novel drug candidates, particularly for central nervous system (CNS) and anti-inflammatory targets.
• Advanced Material Precursor: Used in the development of organic light-emitting diodes (OLEDs), liquid crystals, and other electronic materials due to its rigid, conjugated fluorene structure.
• Agrochemical Synthesis: Serves as an intermediate for creating novel pesticides and herbicides with enhanced efficacy and environmental profiles.
• Ligand and Catalyst Development: Utilized in organometallic chemistry to construct complex chelating ligands for asymmetric catalysis.
• Polymer Chemistry: Incorporated as a monomer or cross-linking agent to produce high-performance polymers with specific thermal and optical properties.
• Academic and Industrial Research: A valuable tool for methodological development in organic synthesis and materials science research.

Basic Information

Product Name	Spiro[1,3-Dioxolane-2,9'-[9H]Fluorene]-4,5-Dicarboxylic Acid, Diethyl Ester
CAS No.	129178-60-5
Molecular Formula	C22H20O6
Molecular Weight	380.39 g/mol
Synonyms	9H-Fluorene-9-spiro-2'-[1,3]dioxolane-4',5'-dicarboxylic acid diethyl ester; Diethyl 9H-fluorene-9-spiro-2'-(1,3-dioxolane)-4',5'-dicarboxylate; Spiro(fluorene-9,2'-[1,3]dioxolane)-4',5'-dicarboxylic acid diethyl ester; Fluorene-9-spiro-2'-(1,3-dioxolane)-4',5'-dicarboxylic acid diethyl ester; 4,5-Di(ethoxycarbonyl)spiro[1,3-dioxolane-2,9'-fluorene]; Spirofluorenedioxolane dicarboxylate ester.
EINECS	Contact for details

Quality Control

Our Spiro[1,3-Dioxolane-2,9'-[9H]Fluorene]-4,5-Dicarboxylic Acid, Diethyl Ester 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 by GC, to ensure it meets the stringent requirements of advanced chemical synthesis. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability, consistency, and compliance with your specifications.

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 strong bases and incompatible organic solvents. The container must be kept tightly sealed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (NMR)	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.