Description

4,4'-Dibromo-2,2',3,3'-tetrahydro-1,1'-spirobi[1H-indene]-7,7'-diol is a specialized brominated spirocyclic diol compound with the CAS number 681481-91-4. This high-purity intermediate is valued for its unique rigid, three-dimensional molecular architecture, which is critical for developing advanced materials with specific optical and electronic properties. It is primarily sought by R&D and production teams in the pharmaceutical and organic electronics sectors for synthesizing novel functional molecules.

Application

• Pharmaceutical Intermediate: Serves as a key chiral building block for the synthesis of complex drug candidates, particularly in central nervous system (CNS) and antiviral research.
• Organic Light-Emitting Diode (OLED) Materials: Used in the development of host or emitter materials for blue or white OLED displays and lighting due to its spiro-configured, rigid backbone which enhances thermal stability and photoluminescence efficiency.
• Ligand Synthesis for Catalysis: Acts as a precursor for creating sophisticated chiral ligands used in asymmetric catalysis for fine chemical and pharmaceutical manufacturing.
• Advanced Polymer Monomer: Incorporated into high-performance polymers to impart rigidity, thermal stability, and specific optical characteristics for specialty coatings and engineering plastics.
• Material Science Research: Employed in academic and industrial R&D for constructing novel molecular frameworks, such as Metal-Organic Frameworks (MOFs) or covalent organic polymers.
• Liquid Crystal Components: Potential use in the synthesis of additives or core structures for liquid crystal mixtures, leveraging its steric and electronic properties.

Basic Information

Product Name	4,4'-Dibromo-2,2',3,3'-tetrahydro-1,1'-spirobi[1H-indene]-7,7'-diol
CAS No.	681481-91-4
Molecular Formula	C19H16Br2O2
Molecular Weight	436.14 g/mol
Synonyms	7,7'-Dihydroxy-4,4'-dibromospirobi[2H-indene-2,1'-cyclohexane]; 4,4'-Dibromospirobi[indane-7,7'-diol]; 4,4'-Dibromo-1,1'-spirobi[1H-indene]-7,7'-diol, 2,2',3,3'-tetrahydro-; Spirobiindane dibromodiol derivative; DBTHSBD; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our production of 4,4'-Dibromo-2,2',3,3'-tetrahydro-1,1'-spirobi[1H-indene]-7,7'-diol adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and GC-MS, to ensure high chemical purity and structural integrity. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed 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). This compound may be light-sensitive and should be handled under an inert atmosphere for long-term stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Area %)
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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