Description

7-Oxa-3,20-diazadispiro[5.1.11.2]heneicosane-20-acetic acid, 2,2,4,4-tetramethyl-21-oxo-, 2,2-bis[[[(2,2,4,4-tetramethyl-21-oxo-7-oxa-3,20-diazadispiro[5.1.11.2]heneicos-20-yl)acetyl]oxy]methyl]-1,3-propanediyl ester is a complex, high-purity spirocyclic compound designed for advanced chemical synthesis. This specialty chemical serves as a critical building block or functional additive in applications requiring precise molecular architecture and stability. It is primarily sought by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and advanced material science sectors for developing novel active ingredients and performance polymers.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of complex active pharmaceutical ingredients (APIs), particularly for neurological or metabolic targets.
• Agrochemical Research: Used in developing novel herbicides, fungicides, or plant growth regulators with specific spirocyclic motifs.
• Polymer Science & Material Additive: Acts as a cross-linking agent, stabilizer, or monomer for creating high-performance, thermally stable resins and coatings.
• Ligand & Catalyst Development: Serves as a sophisticated chelating ligand framework in asymmetric catalysis and metal-organic frameworks (MOFs).
• Advanced Organic Synthesis: A versatile building block for academic and industrial research in constructing complex, three-dimensional molecular architectures.
• Specialty Chemical Manufacturing: Employed in the production of custom fine chemicals and performance materials for niche industrial applications.

Basic Information

Product Name	7-Oxa-3,20-diazadispiro[5.1.11.2]heneicosane-20-acetic acid, 2,2,4,4-tetramethyl-21-oxo-, 2,2-bis[[[(2,2,4,4-tetramethyl-21-oxo-7-oxa-3,20-diazadispiro[5.1.11.2]heneicos-20-yl)acetyl]oxy]methyl]-1,3-propanediyl ester
CAS No.	95008-91-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Bis-TAD; 2,2-Bis[[[(2,2,4,4-tetramethyl-21-oxo-7-oxa-3,20-diazadispiro[5.1.11.2]heneicos-20-yl)acetyl]oxy]methyl]-1,3-propanediyl 2,2,4,4-tetramethyl-21-oxo-7-oxa-3,20-diazadispiro[5.1.11.2]heneicosane-20-acetate; Spirocyclic TAD Ester; TAD Crosslinker; 7-Oxa-3,20-diazadispiro[5.1.11.2]heneicosane-20-acetic acid tetramethyl derivative ester
EINECS	Contact for details

Quality Control

Our 7-Oxa-3,20-diazadispiro[5.1.11.2]heneicosane-20-acetic acid, 2,2,4,4-tetramethyl-21-oxo-, 2,2-bis[[[(2,2,4,4-tetramethyl-21-oxo-7-oxa-3,20-diazadispiro[5.1.11.2]heneicos-20-yl)acetyl]oxy]methyl]-1,3-propanediyl ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specific results for assay, impurities, and other critical parameters are provided and available upon request to support your quality assurance protocols.

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 product is hygroscopic (moisture-sensitive); ensure the container is sealed immediately after use to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Related Substances (HPLC)	Total impurities ≤ 5.0%
Single Unknown Impurity	≤ 1.0%

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