Description

S-Isobutyl Chlorothioformate, 96% is a versatile organosulfur reagent primarily used as a key intermediate in organic synthesis. This compound is valued for its role in introducing the thiocarbonyl and isobutylthio groups into target molecules, enabling the construction of complex chemical architectures. It is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries who require high-purity building blocks for advanced synthesis.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds containing thioester or thiocarbamate functionalities.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides where the isobutylthio moiety contributes to biological activity.
• Polymer Chemistry: Serves as a modifying agent or chain transfer agent in the synthesis of specialty polymers and functional materials.
• Organic Synthesis Reagent: Employed in various name reactions for the preparation of thioesters, thiocarbonates, and other sulfur-containing compounds.
• Chemical Research & Development: A valuable tool for medicinal chemistry and process chemistry R&D for exploring new synthetic pathways.
• Flavor & Fragrance Industry: Potential intermediate in the synthesis of certain sulfur-based aroma compounds.

Basic Information

Product Name	S-Isobutyl Chlorothioformate, 96%
CAS No.	14100-99-3
Molecular Formula	C5H9ClOS
Molecular Weight	152.64 g/mol
Synonyms	Isobutyl Chlorothioformate; Chlorothioformic Acid Isobutyl Ester; Isobutyl Chloridothionoformate; Thiocarbonyl Chloride O-Isobutyl Ester; Isobutylthiochloroformate; S-Isobutyl Chlorothioformate; Isobutyl Chlorothionoformate; 2-Methylpropyl Chlorothioformate
EINECS	237-976-7

Quality Control

Our S-Isobutyl Chlorothioformate, 96% is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including GC and NMR to verify identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurities, and physical properties is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases, oxidizing agents, and sources of ignition. Due to its highly volatile nature and reactivity as a strong acid/organic solvent, containers must be kept tightly sealed and handled with appropriate engineering controls. Recommended storage temperature is 2-8°C for extended stability.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 96.0%
Water Content (KF)	≤ 0.5%
Density (at 20°C)	1.08 - 1.12 g/mL
Refractive Index (n20D)	1.460 - 1.470

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