Trimethylstearylammonium Bromide TCI S0364

Chemical Identity

Other names: OTAB
CAS No.: 1120-02-1
PubChem: CID 70708·SID 87575876
Formula: C21H46BrN
Molecular weight: 392.5 g/mol
Purity: >98.0%(HPLC)(T)
Reference databases: ChemSpider·ECHA

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: trimethyl(octadecyl)azanium bromide
SMILES: CCCCCCCCCCCCCCCCCC[N+](C)(C)C.[Br-]
InChIKey: SZEMGTQCPRNXEG-UHFFFAOYSA-M

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Trimethylstearylammonium Bromide (TCI S0364), with CAS number 1120-02-1, is a chemical compound widely used as a phase transfer catalyst in various chemical reactions. This reagent plays a crucial role in laboratory settings by enabling reactions between immiscible phases, such as water and organic solvents. Its ability to facilitate the transfer of ions or molecules across phase boundaries significantly enhances the efficiency of chemical processes. In synthetic chemistry, it is particularly valuable for reactions that require the interaction of polar and non-polar substances, making it an essential tool for researchers.

One of the key properties that make Trimethylstearylammonium Bromide a preferred choice is its molecular structure, which contains both hydrophobic and hydrophilic groups. This dual nature allows the compound to act as a bridge between polar and non-polar phases, thereby improving the effectiveness of chemical reactions. Additionally, it exhibits stability and resistance to degradation under various laboratory conditions, ensuring consistent performance. These characteristics make it ideal for use in complex chemical syntheses where reliability and efficiency are paramount.

In Indonesian laboratories, Trimethylstearylammonium Bromide is commonly used in research and development settings, particularly in organic synthesis and catalytic processes. Its application is widespread in academic and industrial laboratories, where it supports the advancement of chemical technologies. The compound’s versatility and effectiveness make it a go-to reagent for scientists working on diverse chemical challenges.

TCI brochures (PDF)

Quaternary Ammonium Salts 2025-11-10 · p. 5
Colloidal Quantum Dot (QD) Research Reagents 2026-05-21 · p. 9
Polymer Additives 2026-04-16 · p. 11

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Organic synthesis reactions benefit from Trimethylstearylammonium Bromide due to its ability to enhance interfacial interactions between immiscible phases, improving reaction efficiency and yield.
In aqueous-organic biphasic systems, this catalyst facilitates the transfer of reactants and products across phase boundaries, making it ideal for heterogeneous catalytic processes.
It is widely used in the preparation of complex organic molecules, where it helps overcome solubility limitations and accelerates reaction rates in multi-phase environments.
For industrial chemical processes, Trimethylstearylammonium Bromide supports the development of more efficient and sustainable synthesis methods by reducing energy consumption and waste.
In teaching and research laboratories, it serves as a valuable tool for demonstrating phase transfer mechanisms and catalytic principles in chemical education.

Brand	TCI
CAS number	1120-02-1
Molecular formula	—
Purity	—
Category	Chemistry > Synthetic Reagents > Phase Transfer Catalysts
Pack sizes	Available in various quantities as per supplier specifications
Physical form	Solid powder
Storage	Store in a cool, dry place away from moisture and direct sunlight

Trimethylstearylammonium Bromide should be stored in a cool, dry environment to maintain its chemical stability and effectiveness. It is recommended to keep the compound in airtight containers to prevent exposure to moisture and air, which could affect its performance. Suitable storage conditions include a controlled temperature range between 15°C and 25°C, ensuring the reagent remains in optimal condition for use. General laboratory precautions include handling the material with appropriate personal protective equipment, such as gloves and safety goggles, to minimize direct contact. Proper labeling and storage in designated chemical cabinets are essential to ensure safe handling and prevent accidental exposure. Regular inspection of storage conditions is advised to maintain the integrity of the reagent over time.

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