Description

4',5'-Dibromo-Spiro[9H-Fluorene-9,9'-[9H]Xanthene] is a high-purity, halogenated spirocyclic organic compound, identified by CAS NO 2154387-27-4. This specialty chemical serves as a critical advanced intermediate or functional building block in the synthesis of complex organic materials. It is primarily required by R&D chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials sectors for developing novel compounds with specific electronic or structural properties.

Application

• Pharmaceutical Intermediate: Used in the research and synthesis of novel active pharmaceutical ingredients (APIs), particularly those requiring a rigid, brominated spirocyclic core for biological activity or metabolic stability.
• Agrochemical Synthesis: Serves as a key precursor in developing new generation herbicides, fungicides, or insecticides where the dibromo-xanthene structure imparts specific activity.
• Organic Electronic Materials: Acts as a building block for organic semiconductors, hole-transport materials, or light-emitting materials in OLEDs and other optoelectronic devices due to its conjugated, brominated structure.
• Dye & Pigment Chemistry: Employed in the synthesis of specialized dyes, pigments, or fluorescent markers where the xanthene and fluorene moieties contribute to color and light-absorption properties.
• Polymer & Material Science: Utilized as a monomer or cross-linking agent to create polymers with enhanced thermal stability, refractive index, or specific mechanical properties.
• Academic & Industrial Research: A valuable reagent for methodological development in organic synthesis, catalysis studies, and exploring new chemical spaces in discovery chemistry.

Basic Information

Product Name	4',5'-Dibromo-Spiro[9H-Fluorene-9,9'-[9H]Xanthene]
CAS No.	2154387-27-4
Molecular Formula	C25H14Br2O
Molecular Weight	514.19 g/mol
Synonyms	4',5'-Dibromospiro[fluorene-9,9'-xanthene]; Dibromospiro[fluorene-9,9'-xanthene]; Spiro[9H-fluorene-9,9'-[9H]xanthene], 4',5'-dibromo-; 4',5'-Dibromospiro(fluorene-9,9'-xanthene); 2154387-27-4; 4',5'-Dibromo-9H-spiro[fluorene-9,9'-xanthene]; 4',5'-Dibromospiro[fluorene-9,9'-xanthene]
EINECS	Contact for details

Quality Control

Our 4',5'-Dibromo-Spiro[9H-Fluorene-9,9'-[9H]Xanthene] is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure high chemical purity and structural identity. Certificates of Analysis (COA) detailing purity, impurities, and full characterization data are 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, and well-ventilated place at room temperature (15-25°C). Keep the container sealed to minimize exposure to moisture and atmospheric contaminants.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Area %)
Related Substances (HPLC)	Total impurities ≤ 3.0%
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.