Description

7-Oxa-12-Thia-Spiro[5.6]Dodecan-3-One is a high-purity, specialized heterocyclic compound featuring a unique spirocyclic structure containing both oxygen and sulfur atoms. This molecular architecture makes it a valuable and versatile advanced pharmaceutical intermediate and key building block for complex organic synthesis. It is primarily sought after by R&D and production teams in the pharmaceutical, agrochemical, and advanced materials sectors who require reliable, high-quality intermediates for developing new active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: Serves as a critical precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for central nervous system (CNS) and metabolic disorder targets.
• Agrochemical Synthesis: Used as a building block for developing new generation herbicides, fungicides, and insecticides with enhanced efficacy.
• Material Science Research: Employed in the development of specialty polymers, ligands for catalysis, and organic electronic materials due to its rigid spirocyclic core.
• Chemical Biology & Proteomics: Acts as a scaffold or linker molecule in the design of chemical probes and bioconjugation reagents.
• Academic & Industrial R&D: A valuable compound for methodological studies in organic chemistry, including novel ring-forming and functionalization reactions.

Basic Information

Product Name	7-Oxa-12-Thia-Spiro[5.6]Dodecan-3-One
CAS No.	954236-23-8
Molecular Formula	C9H14O2S
Molecular Weight	186.27 g/mol
Synonyms	7-Oxa-12-thiaspiro[5.6]dodecan-3-one; 3-Oxa-9-thiaspiro[5.5]undecan-7-one (possible numbering variant); Spiro[5.6]dodecan-3-one, 7-oxa-12-thia-; Oxathiaspirododecanone; 954236-23-8; CAS-954236-23-8
EINECS	Contact for details

Quality Control

Every batch of 7-Oxa-12-Thia-Spiro[5.6]Dodecan-3-One is manufactured and tested under a strict Quality Management System. Our products undergo rigorous analytical testing, including HPLC, GC, NMR, and MS, to ensure identity, purity, and consistency meet the high standards required for research and commercial synthesis. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 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.