Description

Spiro[5.5]Undecane-3,9-Dicarboxylic Acid is a high-purity, multifunctional dicarboxylic acid featuring a unique rigid spirocyclic core structure. This compound serves as a critical advanced intermediate for synthesizing complex molecules where conformational control and precise spatial geometry are paramount. It is essential for research and development in the pharmaceutical, agrochemical, and specialty polymer industries, enabling the creation of novel active ingredients and high-performance materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly those requiring rigid, three-dimensional scaffolds to improve binding affinity and metabolic stability.
• Agrochemical Synthesis: Used in the development of new-generation pesticides and herbicides, where its unique structure can contribute to enhanced efficacy and environmental profile.
• Specialty Polymer Monomer: Serves as a diacid monomer for producing polyamides, polyesters, and polyimides with exceptional thermal stability, chemical resistance, and mechanical properties.
• Ligand and Catalyst Development: Employed in organometallic chemistry to create chelating ligands with specific geometries for catalysis and material science applications.
• Advanced Material Research: A valuable precursor for organic electronic materials, liquid crystals, and supramolecular assemblies due to its defined shape and functional groups.
• Custom Synthesis & Contract Manufacturing: Supplied to fine chemical companies and CROs/CMOs for bespoke synthesis projects and scale-up development.

Basic Information

Product Name	Spiro[5.5]Undecane-3,9-Dicarboxylic Acid
CAS No.	10428-90-7
Molecular Formula	C13H20O4
Molecular Weight	240.30 g/mol
Synonyms	3,9-Spiro[5.5]undecanedicarboxylic Acid; 3,9-Dicarboxyspiro[5.5]undecane; Spiro[5.5]undecane-3,9-dioic Acid; 1,1'-Bis(carboxymethyl)cyclohexane; 3,9-Dicarboxyspiropentadecane; NSC 163044; 3,9-Dicarboxy-spiro[5.5]undecane
EINECS	Contact for details

Quality Control

Our Spiro[5.5]Undecane-3,9-Dicarboxylic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with every shipment, confirming compliance with agreed specifications. Our quality commitment supports applications requiring GMP-grade intermediates and research chemicals.

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). Keep away from strong oxidizing agents, strong bases, and heat sources. 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	≤ 10 ppm

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