Description

1-Oxa-5-Thia-9-Aza-Spiro[5.5]Undecane is a sophisticated spirocyclic heterocyclic compound featuring a unique fused ring system containing oxygen, sulfur, and nitrogen atoms. This complex molecular architecture makes it a valuable and versatile advanced pharmaceutical intermediate and key building block for medicinal chemistry research and drug discovery. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for synthesizing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of novel drug candidates, particularly those targeting the central nervous system (CNS) and other therapeutic areas.
• Medicinal Chemistry Building Block: Used to construct complex molecular scaffolds for high-throughput screening and structure-activity relationship (SAR) studies.
• Agrochemical Research: Serves as a key intermediate in the development of new pesticides and herbicides with novel modes of action.
• Ligand and Catalyst Development: The heteroatom-rich structure makes it suitable for designing new chelating ligands and organocatalysts.
• Material Science Research: Investigated as a monomer or additive for creating polymers with specific electronic or optical properties.
• Custom Synthesis and Contract Manufacturing: Supplied for bespoke synthesis projects requiring high-purity, complex heterocycles.

Basic Information

Item	Detail
Product Name	1-Oxa-5-Thia-9-Aza-Spiro[5.5]Undecane
CAS No.	947534-50-1
Molecular Formula	C8H13NOS
Molecular Weight	171.26 g/mol
Synonyms	1-Oxa-5-thia-9-azaspiro[5.5]undecane; 9-Aza-1-oxa-5-thiaspiro[5.5]undecane; Oxathiazaspirodecane; Spiro[1,4-oxathiazinane-3,1'-cyclohexane]; 1-Oxa-5-thia-9-aza-spiro[5.5]undecane
EINECS	Contact for details

Quality Control

We supply 1-Oxa-5-Thia-9-Aza-Spiro[5.5]Undecane in high-purity grades suitable for research and development. Our products undergo rigorous quality testing to ensure batch-to-batch consistency and compliance with customer specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment. We adhere to strict in-house quality management protocols to guarantee the integrity of this sensitive intermediate.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (typically 15-25°C). This compound is moisture-sensitive (hygroscopic) and should be handled under an inert atmosphere for long-term storage to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.