Description

4,4,4',4',5,5,5',5'-Octamethyl-2,2'-Bi[1,3-Dioxolane] is a specialized, high-purity organic compound with the CAS number 35528-76-8. This chemical serves as a valuable protected diol derivative and advanced synthetic intermediate, offering unique steric and electronic properties for complex organic synthesis. It is primarily sought after by pharmaceutical R&D and fine chemical manufacturers for constructing sophisticated molecular architectures.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of complex drug candidates, particularly for creating sterically hindered, protected diol functionalities.
• Ligand Synthesis: Used in the preparation of specialized ligands for catalysis and metal-organic frameworks (MOFs).
• Polymer Chemistry: Acts as a monomer or chain extender for producing specialty polymers with tailored properties.
• Organic Synthesis Reagent: Employed in multi-step syntheses requiring stable, protected diol groups under strong acidic or basic conditions.
• Material Science Research: Utilized in developing novel organic materials and advanced coatings.
• Agrochemical Synthesis: Intermediate for creating advanced, high-performance active ingredients.

Basic Information

Product Name	4,4,4',4',5,5,5',5'-Octamethyl-2,2'-Bi[1,3-Dioxolane]
CAS No.	35528-76-8
Molecular Formula	C18H34O4
Molecular Weight	314.46 g/mol
Synonyms	2,2'-Bi(1,3-dioxolane), 4,4,4',4',5,5,5',5'-octamethyl-; Octamethyl-2,2'-bi-1,3-dioxolane; 2,2'-Bis(4,4,5,5-tetramethyl-1,3-dioxolane); Tetramethyldioxolane dimer; Protected Pinacol Dimer; 1,1,2,2-Tetrakis(2-hydroxy-2-methylpropyl)ethane cyclic bis(acetal)
EINECS	Contact for details

Quality Control

Our 4,4,4',4',5,5,5',5'-Octamethyl-2,2'-Bi[1,3-Dioxolane] is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical specifications. Our quality commitment supports applications requiring high-purity intermediates for regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong acids and incompatible organic solvents. For long-term storage, consider an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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