Description

Sulfur Trioxide-Triethylamine Complex is a versatile and stabilized reagent form of sulfur trioxide, widely used as a powerful sulfonating and sulfating agent. This complex offers a safer and more controllable alternative to gaseous or fuming sulfur trioxide, mitigating handling hazards while maintaining high reactivity. It is essential for synthetic chemists in the pharmaceutical, agrochemical, and specialty chemical industries for introducing sulfonate groups, synthesizing surfactants, and producing key intermediates.

Application

• Pharmaceutical Synthesis: Key reagent for the sulfonation of organic compounds in the production of active pharmaceutical ingredients (APIs) and drug intermediates.
• Agrochemical Manufacturing: Used in the synthesis of sulfonated herbicides, pesticides, and plant growth regulators.
• Surfactant & Detergent Production: Critical for the sulfation of alcohols and ethoxylates to manufacture anionic surfactants, detergents, and emulsifiers.
• Dye & Pigment Industry: Employed in the sulfonation of dye precursors to enhance water solubility and fiber affinity.
• Polymer Modification: Used to introduce sulfonate groups onto polymers, altering properties like hydrophilicity and ion-exchange capacity.
• Laboratory Research: A valuable reagent in academic and R&D settings for organic synthesis and method development involving sulfonation reactions.
• Specialty Chemical Synthesis: Production of sulfonic acids, sulfonate esters, and other specialty organic compounds.

Basic Information

Product Name	Sulfur Trioxide-Triethylamine Complex
CAS No.	54381-28-1
Molecular Formula	C6H15NO3S
Molecular Weight	181.25 g/mol
Synonyms	Triethylamine Sulfur Trioxide Complex; Triethylamine-SO3 Complex; Sulfur Trioxide Triethylamine Adduct; SO3•NEt3; Triethylaminosulfurtrioxide; Et3N•SO3; Sulfur Trioxide - Triethylamine (1:1); Triethylamine Sulfonate
EINECS	Contact for details

Quality Control

Our Sulfur Trioxide-Triethylamine Complex is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity, consistency, and compliance with relevant industry standards. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under an inert atmosphere or in a desiccator to prevent decomposition. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, oxidizing agents, and water.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 95.0%
Water Content (KF)	≤ 1.0%
Melting Point	Approx. 92-96 °C

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