1. Description
Trimethylstearylammonium Chloride (CAS 112-03-8), also known as Steartrimonium Chloride, is a quaternary ammonium compound widely utilized as a pharmaceutical excipient. It functions primarily as a cationic surfactant, possessing effective emulsifying, conditioning, and antimicrobial properties. These benefits make it valuable in various topical and ophthalmic formulations, contributing to product stability and preservation.
2. Properties Table
Property Value Product Name Trimethylstearylammonium Chloride CAS Number 112-03-8 Common Synonym Steartrimonium Chloride (STAC) Chemical Class Quaternary Ammonium Compound, Cationic Surfactant Appearance White to off-white solid or paste Molecular Formula Molecular Weight Solubility Soluble in water, ethanol Purity (Assumed) (Pharmaceutical/Cosmetic Grade) 3. Usage
- Employed as an antimicrobial preservative in certain topical preparations and ophthalmic solutions (use subject to formulation suitability).
- Functions as an emulsifying agent to stabilize oil-in-water emulsions in pharmaceutical creams and lotions.
- Utilized as a conditioning agent in medicated shampoos or skin cleansers, providing anti-static properties.
4. Packaging & Transportation
Supplied in sealed, airtight containers such as HDPE drums or bottles to prevent contamination and moisture absorption. Transported in compliance with relevant chemical regulations (e.g., IATA, DOT), potentially classified as an irritant or corrosive depending on concentration; refer to SDS for specifics.
5. Storage
Store in original, tightly closed containers in a cool (), dry, and well-ventilated area. Keep separate from incompatible substances like strong oxidizing agents.
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