Description

1,3,2-Dioxathiolane-4-Carbonyl Chloride, 4-Methyl-, 2-Oxide (9Ci) is a specialized organic intermediate featuring a reactive carbonyl chloride group within a cyclic sulfite ester structure. This compound is valued for its role as a key building block in the synthesis of complex molecules, particularly in pharmaceutical and advanced material research. It is primarily sought by R&D chemists and process development scientists in the fine chemical, agrochemical, and pharmaceutical industries for constructing novel molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of active pharmaceutical ingredients (APIs), especially for compounds requiring cyclic sulfite or sulfonate ester motifs.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and insecticides where its reactive moiety enables specific functionalization.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the development of specialty polymers with unique thermal or chemical resistance properties.
• Ligand and Catalyst Development: Employed in the preparation of chiral ligands or organocatalysts for asymmetric synthesis applications.
• Chemical Biology Probes: Utilized as a derivatization agent or building block for creating molecular probes used in biochemical and diagnostic research.
• Material Science Research: Investigated for its potential in creating novel organic frameworks or surface-modifying agents for advanced materials.

Basic Information

Item	Details
Product Name	1,3,2-Dioxathiolane-4-Carbonyl Chloride, 4-Methyl-, 2-Oxide (9Ci)
CAS No.	316373-89-4
Molecular Formula	C5H7ClO4S
Molecular Weight	198.62 g/mol
Synonyms	4-Methyl-1,3,2-dioxathiolane-4-carbonyl chloride 2-oxide; 4-Methyl-2-oxo-1,3,2-dioxathiolane-4-carbonyl chloride; 4-Methyl-1,3,2-dioxathiolane-4-carboxylic acid chloride 2-oxide; 4-Methyl-1,3,2-dioxathiolane-4-carbonyl chloride S-oxide; Cyclic sulfite carbonyl chloride derivative
EINECS	Contact for details

Quality Control

Our production of 1,3,2-Dioxathiolane-4-Carbonyl Chloride, 4-Methyl-, 2-Oxide adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity for research and development applications. Each lot is analyzed using advanced techniques including HPLC, NMR, and IR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

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/59-77°F). Due to its reactivity as a strong acid/organic solvent derivative, keep away from heat, sparks, open flames, and incompatible materials such as bases, alcohols, and amines. Handle and store under an inert atmosphere (e.g., nitrogen or argon) for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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