Description

Spiro[5.5]Undecane-2,4-Dione is a specialized spirocyclic diketone compound that serves as a versatile and high-value synthetic building block in advanced organic chemistry. Its unique bridged bicyclic structure provides a rigid, three-dimensional framework essential for constructing complex molecular architectures. This intermediate is particularly valuable for researchers and manufacturers in the pharmaceutical and agrochemical sectors, where it is used to develop novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those requiring complex, conformationally restricted scaffolds.
• Agrochemical Synthesis: Building block for developing new pesticides and herbicides with enhanced efficacy and selectivity.
• Material Science Research: Used in the creation of specialty polymers, ligands for catalysis, and other advanced functional materials.
• Flavor & Fragrance Industry: Intermediate for synthesizing musky or amber-type odorants and complex flavor molecules.
• Organic Synthesis & Methodology: A valuable substrate for studying new chemical reactions, such as cycloadditions or asymmetric transformations.
• Academic & R&D Laboratories: Serves as a standard or starting material for research in medicinal chemistry and total synthesis projects.

Basic Information

Product Name	Spiro[5.5]Undecane-2,4-Dione
CAS No.	1481-99-8
Molecular Formula	C11H16O2
Molecular Weight	180.24 g/mol
Synonyms	2,4-Dioxaspiro[5.5]undecane; 1,4-Cyclohexanedione, 2,2-pentamethylene-; Spiro[5.5]undecane-2,4-dione; 2,2-Pentamethylene-1,4-cyclohexanedione
EINECS	Contact for details

Quality Control

Our Spiro[5.5]Undecane-2,4-Dione is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with every shipment, guaranteeing traceability and compliance with your research or production specifications. Custom purity grades, including high-purity research and development standards, are available upon request.

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). Keep away from strong oxidizing agents.

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%

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