Description

3,3,3',3'-Tetramethyl-5,5',6,6'-Tetrapropoxy-1,1'-Spirobiindane CAS NO 89929-65-7 is a high-purity, advanced organic intermediate characterized by its unique spirobiindane scaffold. This compound is valued for its role as a critical building block in the synthesis of sophisticated materials, particularly in high-performance polymer and liquid crystal applications. It is essential for R&D and production teams in the specialty chemicals, advanced materials, and electronics industries seeking to develop novel products with enhanced thermal and optical properties.

Application

• Advanced Polymer Synthesis: A key monomer for producing high-performance engineering plastics and specialty polycarbonates with superior thermal stability and mechanical strength.
• Liquid Crystal Materials: Serves as a core structural unit in the development of liquid crystal mixtures for display technologies (LCDs) and optical devices.
• Pharmaceutical Intermediates: Utilized in the research and synthesis of complex drug molecules, particularly those requiring rigid, three-dimensional frameworks.
• Organic Electronic Materials: Acts as a precursor for charge-transport materials or host materials in OLED (Organic Light-Emitting Diode) applications.
• Asymmetric Catalyst Ligands: The chiral, bulky structure makes it a candidate for developing novel ligands used in asymmetric catalysis.
• Cross-linking Agents: Used in formulations for high-temperature resistant coatings and adhesives.

Basic Information

Product Name	3,3,3',3'-Tetramethyl-5,5',6,6'-Tetrapropoxy-1,1'-Spirobiindane
CAS No.	89929-65-7
Molecular Formula	C34H50O4
Molecular Weight	522.76 g/mol
Synonyms	5,5',6,6'-Tetrapropoxy-3,3,3',3'-tetramethyl-1,1'-spirobiindane; 1,1'-Spirobiindane-5,5',6,6'-tetrol, 3,3,3',3'-tetramethyl-, tetrapropyl ether; Spirobiindane Tetrapropyl Ether; Tetrapropoxy Spirobiindane Derivative; SBI-TP; CAS 89929-65-7
EINECS	Contact for details

Quality Control

Our production of 3,3,3',3'-Tetramethyl-5,5',6,6'-Tetrapropoxy-1,1'-Spirobiindane adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and batch-to-batch consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications. We support custom synthesis and can tailor purity grades to meet specific R&D or commercial production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its light-sensitive and easily oxidized nature, it is recommended to store the material under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.