Description

1,4-Dioxaspiro[4.4]Nonane-2-Methanol,2-Propyl-,(S)-(9Ci) is a high-purity chiral building block and synthetic intermediate of significant value in advanced organic synthesis. Its spirocyclic acetal-protected structure and defined stereochemistry make it a critical component for constructing complex molecules with precise spatial orientation. This compound is essential for research and development chemists in the pharmaceutical and fine chemical industries seeking to develop novel active ingredients and specialty materials.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon in the synthesis of novel drug candidates, particularly for central nervous system (CNS) and antiviral therapeutics.
• Asymmetric Synthesis: Utilized as a building block for constructing complex natural products and bioactive molecules requiring high enantiomeric purity.
• Ligand and Catalyst Development: Employed in the preparation of chiral ligands and organocatalysts for stereoselective transformations.
• Fine Chemical Production: Acts as a precursor in the manufacture of specialty chemicals, flavors, and fragrances where specific stereochemistry is required.
• Academic and Industrial R&D: Used in research laboratories for methodological development and exploring new synthetic pathways.

Basic Information

Product Name	1,4-Dioxaspiro[4.4]Nonane-2-Methanol,2-Propyl-,(S)-(9Ci)
CAS No.	173540-59-5
Molecular Formula	C11H20O3
Molecular Weight	200.27 g/mol
Synonyms	(S)-2-Propyl-1,4-dioxaspiro[4.4]nonane-2-methanol; (S)-2-(Hydroxymethyl)-2-propyl-1,4-dioxaspiro[4.4]nonane; (S)-2-Propyl-2-(hydroxymethyl)-1,4-dioxaspiro[4.4]nonane; (4S)-2-Propyl-2-(hydroxymethyl)-1,4-dioxaspiro[4.4]nonane; Spirocyclic acetal alcohol; Chiral spiroketal derivative; (S)-Configured spiroacetal methanol.
EINECS	Contact for details

Quality Control

Our production of 1,4-Dioxaspiro[4.4]Nonane-2-Methanol,2-Propyl-,(S)-(9Ci) adheres to stringent quality management systems to ensure batch-to-batch consistency and high enantiomeric purity. Every lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing critical parameters such as chiral purity (enantiomeric excess), chemical purity (by HPLC/GC), and identity confirmation. We support cGMP compliance for pharmaceutical applications and can provide material for regulatory filings.

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 heat sources and incompatible materials. For long-term storage under inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC/GC)	≥ 97.0%
Enantiomeric Purity (Chiral HPLC)	≥ 98.0% ee
Water Content (KF)	≤ 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.