Description

9,9'-Spirobi[Fluorene]-2,2'-Diyldiboronic Acid is a high-purity, bifunctional boronic acid derivative serving as a critical building block in advanced organic synthesis. Its value lies in enabling the construction of complex, rigid, and conjugated molecular architectures through reliable cross-coupling reactions. This compound is essential for researchers and manufacturers in the fields of organic electronics, pharmaceutical intermediates, and advanced material science, particularly for developing OLED materials, ligands, and novel polymers.

Application

• Suzuki-Miyaura Cross-Coupling Reactions: A key monomer for constructing spiro-conjugated polymers and small molecules used in Organic Light-Emitting Diodes (OLEDs) and Organic Photovoltaics (OPVs).
• Pharmaceutical Intermediate: Serves as a versatile precursor in the synthesis of complex drug candidates, especially those requiring rigid, three-dimensional scaffolds.
• Material Science Research: Used to develop novel organic semiconductors, hole/electron transport materials, and luminescent materials due to its stable boronic acid groups and spirobifluorene core.
• Ligand Synthesis: Acts as a starting material for creating sophisticated chelating ligands used in catalysis and metal-organic frameworks (MOFs).
• Polymer Chemistry: Enables the synthesis of high-performance, cross-linked, or linear polymers with tailored electronic and optical properties.

Basic Information

Product Name	9,9'-Spirobi[Fluorene]-2,2'-Diyldiboronic Acid
CAS No.	1222007-94-4
Molecular Formula	C25H18B2O4
Molecular Weight	404.04 g/mol
Synonyms	2,2'-Bis(boronic acid)-9,9'-spirobifluorene; 9,9'-Spirobi[9H-fluorene]-2,2'-diyldiboronic Acid; SBF-DB; 2,2'-(9,9'-Spirobifluorene-2,2'-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (Pinacol Ester); 2,2'-(9,9'-Spirobi[fluorene]-2,2'-diyl)diboronic Acid; 9,9'-Spirobifluorene-2,2'-diboronic Acid; 2,2'-Diboronic Acid-9,9'-spirobifluorene
EINECS	Contact for details

Quality Control

Our 9,9'-Spirobi[Fluorene]-2,2'-Diyldiboronic Acid is manufactured under strict quality protocols to ensure batch-to-batch consistency and high purity for sensitive applications. Each lot undergoes comprehensive analytical characterization, including HPLC, NMR, and elemental analysis. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed in a dry environment to prevent moisture absorption, which can affect reactivity. For long-term storage, consider handling under an inert atmosphere such as nitrogen or argon.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Heavy Metals	≤ 20 ppm

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