Description

Thiopropionic Acid S-Isobutyl Ester is a specialized organosulfur compound with the CAS registry number 2432-48-6. This ester is valued for its role as a versatile intermediate and additive, particularly in applications requiring sulfur-based functionality. It is primarily sought by manufacturers in the polymer, agrochemical, and specialty chemical industries for synthesis and formulation processes.

Application

• Polymer Additive: Acts as a stabilizer or chain transfer agent in the production of synthetic rubbers and plastics.
• Agrochemical Intermediate: Used in the synthesis of specific pesticides and herbicides where sulfur incorporation is required.
• Flavor & Fragrance Ingredient: Serves as a precursor for certain sulfur-containing aroma compounds, contributing to savory or roasted notes.
• Lubricant & Fuel Additive: Functions as an extreme pressure (EP) additive or antioxidant component in specialty lubricants and industrial fuels.
• Chemical Synthesis: A key building block for pharmaceuticals and other fine chemicals requiring the thiopropionate moiety.
• Crosslinking Agent: Utilized in certain resin and adhesive formulations to introduce sulfur-based crosslinks.

Basic Information

Product Name	Thiopropionic Acid S-Isobutyl Ester
CAS No.	2432-48-6
Molecular Formula	C7H14O2S
Molecular Weight	162.25 g/mol
Synonyms	S-Isobutyl 3-Mercaptopropionate; Isobutyl 3-Mercaptopropionate; 3-Mercaptopropionic Acid Isobutyl Ester; Isobutyl 3-Sulfanylpropanoate; Thiopropionic Acid Isobutyl Ester; Isobutyl β-Mercaptopropionate; 2432-48-6; Propanoic acid, 3-mercapto-, 1,1-dimethylethyl ester
EINECS	219-404-5

Quality Control

Our production of Thiopropionic Acid S-Isobutyl Ester adheres to stringent quality protocols to ensure batch-to-batch consistency and reliability. Each lot is analyzed against comprehensive specifications using advanced techniques like GC and HPLC. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment, ensuring full traceability and compliance with customer requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials. Due to its highly volatile and easily oxidized nature, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation and to minimize degradation. Keep container tightly sealed when not in use.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Refractive Index (20°C)	1.458 - 1.462
Density (20°C)	0.98 - 1.02 g/mL
Water Content (KF)	≤ 0.5%

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