Select surfactant solutions formulated for stability, mildness, and high-performance foaming profile.
Exploring the structural mechanics, zwitterionic stability, and interfacial benefits of CAS 13197-76-7 in modern mild surfactant systems.
In the rapidly evolving landscape of personal care chemistry, Lauryl Hydroxysultaine (LHS-45%), scientifically indexed as dodecyl(2-hydroxy-3-sulfopropyl)dimethylammonium betaine (CAS NO.: 13197-76-7), stands out as a highly versatile and structurally advanced zwitterionic surfactant. Unlike standard alkyl amido betaines, such as Cocamidopropyl Betaine (CAPB), Lauryl Hydroxysultaine possesses a sulfonate group instead of a carboxylate group, coupled with an essential hydroxyl moiety. This unique chemical construct delivers superior performance characteristics, particularly under challenging formulary conditions.
The presence of the hydroxyl group enhances the molecular hydrophilicity, leading to lower critical micelle concentration (CMC) values and a dramatic reduction in surface tension. Furthermore, the zwitterionic nature of LHS-45% allows it to carry both positive and negative charges depending on the pH of the medium. Under typical physiological skin pH levels (5.5) and lower, LHS-45% exhibits synergistic performance with anionic surfactants, constructing highly stable mixed micellar systems that drastically diminish irritation potential while optimizing viscosity responses.
| Analytical Parameter | Guaranteed Specification | Testing Reference Method | Formulation Significance |
|---|---|---|---|
| Appearance | Clear to Light Yellowish Liquid | Visual Inspection | Ensures crystal-clear transparency in high-end formulations |
| Active Content (%) | 45.0 ± 2.0 % | ISO 2871-2 Potentiometric Titration | Highly concentrated form reduces logistic footprints and water overhead |
| Free Amine Content (%) | ≤ 0.5 % | Gas Chromatography (GC) | Lowers risk of nitrosamine formation, securing clean beauty claims |
| Sodium Chloride (%) | ≤ 6.0 % | Silver Nitrate Argentometry | Helps optimize the salt curve without causing formula destabilization |
| pH Value (5% aq. sol.) | 5.0 – 7.0 | pH Electrode Meter | Physiologically balanced for dermatological compatibilities |
How Suzhou Yuantairun optimizes the reaction pathways to guarantee low by-product profiles and ecological sustainability.
Our synthesis leverages high-purity Lauryl Dimethylamine reacting with Sodium 3-chloro-2-hydroxypropanesulfonate. Under controlled temperature conditions, the reaction proceeds with high regioselectivity, preventing side-chain branchings and guaranteeing a linear C12 distribution of at least 98%.
Standard manufacturing can leave trace amounts of unreacted Monochloroacetic Acid or tertiary amines. Our advanced vacuum-stripping and chemical finishing stages restrict residual tertiary amines to < 0.5% and eliminate Monochloroacetic Acid entirely, satisfying strict ECHA regulations.
Due to the lack of ester bonds, LHS-45% does not suffer from hydrolysis under basic or acidic formulations (pH 2 to 12). This is a substantial advantage over traditional betaines, allowing chemists to formulation-strip without fearing viscosity shifts or phase separation over time.
Adapting LHS-45% into diverse product landscapes to address the specific performance needs of regional consumer demands.
Context: High demand for skin barrier preservation and non-irritating formulas in China, Japan, and South Korea.
Solution: Replacing CAPB with LHS-45% in amino acid-based cleansers (Sodium Cocoyl Glycinate) reduces ocular and skin irritation indexes by up to 40%. It generates a rich, creamy, micro-porous foam that meets strict cosmetic assessment panels.
Context: Shift toward sulfate-free formulations in North America and Western Europe that do not strip salon-treated hair.
Solution: Formulated alongside APGs and Sodium Lauroyl Methyl Isethionate, LHS-45% serves as a primary viscosity builder. In the presence of electrolytes, it forms rod-like micelles, removing the need for synthetic polymer thickeners.
Context: High concentrations of calcium and magnesium ions degrade standard surfactant lather in emerging regions.
Solution: The hydroxysultaine molecule possesses exceptional tolerance to polyvalent ions. In hard water areas, LHS-45% acts as a calcium soap dispersant, preventing soap scum formation while maintaining strong, stable flash foam.
Market dynamics, regulatory evolution, and the global transition towards biodegradable chemical specialties.
The global surfactant market is undergoing an unprecedented structural transition. Consumer pressure and environmental mandates are driving brands away from traditional petroleum-derived surfactants (such as LAS and linear ABS) towards oleochemical-derived ingredients. Lauryl Hydroxysultaine (derived from natural coconut oil or palm kernel oil sources) perfectly aligns with these initiatives, offering a biodegradability rating of over 90% within 28 days under OECD 301B guidelines.
Furthermore, multinational personal care brands are facing heavy pressures to eliminate 1,4-dioxane and nitrosamine risks. By choosing LHS-45% produced through clean synthesis protocols, brands ensure compliance with US FDA and European Cosmetics Regulation (EC) No 1223/2009.
In the wake of supply chain disruptions over recent years, raw material supply security has become a priority for global chemical procurements. Having a reliable supplier that controls the upstream fatty tertiary amine intermediate supply chain is essential. Suzhou Yuantairun's integration guarantees consistent batch-to-batch production parameters, preventing price shocks and shortages in key regions like the Americas, Europe, and Asia.
Our distribution network ensures JIT (Just-In-Time) deliveries, backed by regional safety stocks to hedge against geopolitical and shipping challenges.
As a leading supplier in the daily chemical raw materials industry, Suzhou Yuantairun Chemical Co., Ltd. is dedicated to delivering high-quality products and comprehensive one-stop services to support our customers in R&D, production, and supply chain optimization. Our mission is to drive innovation and efficiency in the global daily chemical industry by providing cutting-edge solutions tailored to our clients' needs.
Founded in 2010 with over 7,000+ cooperative partners, our facilities implement advanced automation systems, ensuring tight control over parameters like color, solid content, and by-product profiles. Our highly competitive pricing models do not compromise on product quality, giving global formulation brands a distinct edge.
Navigating complex global regulatory environments with reliable documentation and local expert support.
Fully registered for EU REACH markets, offering continuous access to European formulation laboratories and production sites.
Certified according to strict dietary and ethical raw material guidelines, allowing global sales across diverse demographics.
Supports sustainable palm oil sourcing pathways (Mass Balance models) to meet corporate green sourcing criteria.
Comprehensive toxicology dossiers, patch testing logs, and irritation matrices available upon request for compliance.
How LHS-45% interacts with common personal care ingredients to yield optimum viscosity and skin mildness profiles.
When combined with Sodium Laureth Sulfate (SLES) or Sodium Alpha-Olefin Sulfonate (AOS), Lauryl Hydroxysultaine creates a mixed micellar dynamic. Under aqueous dilution, the bulky polar heads of LHS-45% intercalate between the charged anionic heads. This reduces electrostatic repulsion within the micelle structure, lowering the CMC and increasing the micelle size. As a result, formulas achieve:
For sulfate-free designs utilizing Amino Acid surfactants (such as Lauroyl Sarcosinates or Cocoyl Glutamates), achieving viscosity can be challenging. Adding 2.0% - 5.0% LHS-45% changes the micellar geometries from spherical to worm-like configurations, significantly increasing formulation viscosity.
Unlike standard CAPB, the salt response curve of LHS-45% is broad and stable. This provides chemists with a wider tolerance window during the production phase, reducing batch deviations.
Expert answers regarding the application, quality, storage, and safety of Lauryl Hydroxysultaine Betaine 45%.
Contact our technical team for custom dilutions, sample requests, and comprehensive regulatory documentation.
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