Description

2-Butanone, 4,4-Thiobis- is a specialized sulfur-containing organic compound that serves as a versatile chemical intermediate and functional additive. Its molecular structure makes it valuable for introducing sulfur bridges and modifying material properties in advanced manufacturing processes. This product is essential for industries focused on polymer synthesis, specialty chemicals, and performance material development where precise chemical functionality is required.

Application

• Polymer Modification: Acts as a cross-linking agent or chain transfer agent in the synthesis of specialty polymers and resins.
• Lubricant & Fuel Additives: Used as a precursor or intermediate in the production of extreme pressure (EP) additives and antioxidant packages.
• Pharmaceutical Intermediates: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs) containing sulfur functionalities.
• Agrochemical Synthesis: Employed in the manufacture of certain herbicides, fungicides, and plant growth regulators.
• Rubber & Elastomer Industry: Functions as a vulcanizing agent or accelerator component in specialty rubber formulations.
• Chemical Research & Development: Utilized as a reagent for introducing the thiobis moiety in novel organic synthesis pathways.

Basic Information

Product Name	2-Butanone, 4,4-Thiobis-
CAS No.	40790-04-3
Molecular Formula	C8H14O2S
Molecular Weight	174.26 g/mol
Synonyms	Bis(1-methylpropyl) sulfone; Di-sec-butyl sulfone; 4,4'-Thiobis(2-butanone); 1-Methylpropyl sulfone; sec-Butyl sulfone; Sulfonylbis(2-butanone); 2-Butanone, 4,4'-thiobis-; 4,4'-Sulfonylbis(2-butanone)
EINECS	Contact for details

Quality Control

Our 2-Butanone, 4,4-Thiobis- is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling, to ensure it meets precise customer specifications and consistent high purity. Certificates of Analysis (COA) documenting all critical quality attributes are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This compound is easily oxidized and should be kept under an inert atmosphere (e.g., nitrogen) for long-term storage to maintain stability and purity. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.