Description

Dimethyl 2,4,8,10-Tetraoxaspiro[5.5]Undecane-3,9-Dicarboxylate is a specialized spirocyclic acetal diester compound with the CAS number 3058-09-1. This high-purity intermediate is valued for its unique molecular architecture, which serves as a versatile building block in advanced organic synthesis. It is primarily sought by R&D and production teams in the pharmaceutical, agrochemical, and polymer industries for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of complex drug molecules, particularly those requiring spirocyclic or protected diol motifs.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, where its structure contributes to specific biological activity.
• Polymer & Resin Modifier: Acts as a cross-linking agent or monomer to impart specific chemical resistance, stability, or degradation profiles to specialty polymers.
• Organic Synthesis Reagent: Serves as a protected form of a dialdehyde or diacid equivalent in multi-step synthetic routes requiring selective deprotection.
• Material Science Research: Investigated for use in creating novel organic frameworks, coatings, and electronic materials due to its rigid, symmetrical structure.

Basic Information

Product Name	Dimethyl 2,4,8,10-Tetraoxaspiro[5.5]Undecane-3,9-Dicarboxylate
CAS No.	3058-09-1
Molecular Formula	C11H16O8
Molecular Weight	276.24 g/mol
Synonyms	Dimethyl 3,9-dioxo-2,4,8,10-tetraoxaspiro[5.5]undecane-3,9-dicarboxylate; 3,9-Dicarbomethoxy-2,4,8,10-tetraoxaspiro[5.5]undecane; Spiroglycol Dimethyl Ether Diester; Acetal Diester CAS 3058-09-1; DMTOSU; Pentacrythritol Acetal Diester
EINECS	221-294-8

Quality Control

Our Dimethyl 2,4,8,10-Tetraoxaspiro[5.5]Undecane-3,9-Dicarboxylate is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. A Certificate of Analysis (COA) detailing all specification results is provided with each shipment. We support compliance with REACH and other global regulatory frameworks.

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, strong bases, and incompatible organic solvents. The container must be kept tightly sealed to prevent moisture absorption.

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	≤ 10 ppm

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