Description

Sulfur Trioxide-Triethylamine Complex is a versatile and highly reactive sulfonating and sulfating agent, offering a safer and more controllable alternative to gaseous sulfur trioxide. This complex is crucial for introducing the sulfonate (-SO3) group into organic molecules, a key step in synthesizing surfactants, dyes, and pharmaceutical intermediates. It is an essential reagent for chemical manufacturers and R&D laboratories in the fine chemical, agrochemical, and pharmaceutical sectors seeking efficient and high-purity sulfonation reactions.

Application

• Sulfonation/Sulfation Reagent: Primary use for the controlled sulfonation of aromatic compounds, alcohols, and olefins in fine chemical synthesis.
• Surfactant Manufacturing: Key intermediate in the production of anionic surfactants like alkylbenzene sulfonates (LABS) and alcohol sulfates.
• Dye and Pigment Synthesis: Used in the sulfonation step to create water-soluble dyes and pigment intermediates.
• Pharmaceutical Intermediates: Employed in the synthesis of sulfonamide drugs and other active pharmaceutical ingredients (APIs) requiring sulfonate groups.
• Agrochemical Production: Utilized in manufacturing sulfonated herbicides, fungicides, and other crop protection agents.
• Polymer Modification: Can be used to sulfonate polymers to alter their solubility, hydrophilicity, or ionic character.
• Laboratory Research: A valuable reagent for organic synthesis and methodological development in academic and industrial R&D settings.

Basic Information

Item	Information
Product Name	Sulfur Trioxide-Triethylamine Complex
CAS No.	761-01-3
Molecular Formula	C6H15NO3S
Molecular Weight	181.25 g/mol
Synonyms	Triethylamine Sulfur Trioxide Complex; Triethylamine-SO3 Complex; Sulfur Trioxide Triethylamine Adduct; Et3N·SO3; Triethylaminosulfurtrioxide; TEA-SO3; SO3-TEA Complex; Sulfur Trioxide - Triethylamine (1:1)
EINECS	212-063-2

Quality Control

Our Sulfur Trioxide-Triethylamine Complex is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing to ensure high purity and consistent reactivity. A detailed Certificate of Analysis (COA) is provided, documenting key parameters such as assay, identity, and impurity profiles. We are committed to meeting the exacting standards required for fine chemical synthesis and GMP-related applications where applicable.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition. Recommended storage temperature is 2-8°C for long-term stability.

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.