Sodium Lauroyl Sarcosinate SLSA Lauroylsarcosine Na CAS 137-16-6
- CAS: 137-16-6
- EINECS No.: 205-281-5
- Molecular Formula: C₁₅H₂₈NO₃Na
- Synonyms: N-Lauroylsarcosine sodium salt; Lauroylsarcosine Na; SLSA
- Packaging: 200 kg drum, customizable
Tree Chem manufactures Sodium Lauroyl Sarcosinate CAS 137-16-6 as a high-performance anionic surfactant derived from sarcosine and lauric acid. It provides excellent foaming, cleansing, and conditioning properties with low irritation, making it suitable for facial cleansers, body washes, and oral-care products.
Tree Chem has long-standing cooperation with cosmetic, detergent, and oral-care manufacturers worldwide, supplying stable quality materials and technical support for formula development. For further information or purchasing inquiries, please contact rocket@cntreechem.com.
Specification
Basic Information
| Parameter | Value |
| Product Name | Sodium Lauroyl Sarcosinate |
| Synonyms | N-Lauroylsarcosine sodium salt; Lauroylsarcosine Na; SLSA |
| CAS No. | 137-16-6 |
| EC No. | 205-281-5 |
| Molecular Formula | C₁₅H₂₈NO₃Na |
| Molecular Weight | 293.38 g/mol |
| Appearance | Clear to slightly yellow transparent liquid |
Tree Chem has extensive experience exporting Sodium N-Lauroyl Sarcosinate to global markets and provides continuous technical support to international partners. Our professional formulation team works closely with overseas factories, conducting daily formulation testing and optimization to meet different application needs in personal care, oral care, and household cleaning products. Through years of cooperation, our formulations have been widely recognized for their stability, mildness, and excellent performance. In addition to product supply, Tree Chem offers one-stop sourcing and procurement management services, simplifying bulk and list-based purchasing for clients. With strong technical expertise and deep industry experience, we help global customers enhance efficiency, ensure consistent quality, and accelerate innovation in formulation development and production.
Technical Specification
| Test Item | Specification |
| Appearance | Clear transparent liquid |
| Odor | Odorless or light characteristic smell |
| Color (APHA) | ≤50 |
| pH (10% aqueous solution) | 7.0–8.5 |
| Solid Content (%) | 30.0 ± 1.0 |
| Sodium Chloride Content (%) | ≤0.2 |
| Viscosity (mPa·s) | ≤30 |
| Free Lauric Acid (%) | ≤1.5 |
| Total Bacteria (CFU/g) | ≤100 |
| Mold and Yeast (CFU/g) | ≤50 |
| Heavy Metals (as Pb, ppm) | ≤10 |
Applications
Personal Care Industry
- Sodium N-Lauroyl Sarcosinate is a mild anionic surfactant with excellent foaming, cleansing, and skin compatibility properties, widely used in personal care formulations. In shampoos, shower gels, facial cleansers, and shaving foams, it provides rich and delicate foam while minimizing irritation compared with traditional sulfate surfactants.
- Its molecular structure contains both amide and carboxyl groups, allowing it to maintain high solubility and foam stability under neutral or slightly acidic conditions.
- In toothpaste formulations, Sodium N-Lauroyl Sarcosinate exhibits strong cleansing, antibacterial, and low-irritation performance, and serves as an alternative to Sodium Lauryl Sulfate (SLS). It gently removes stains and supports polishing action while being safe for sensitive users and children.
- Additionally, in skincare emulsions and shaving creams, it functions as both an emulsifier and conditioning agent, improving product spreadability and leaving the skin soft and smooth.
Household Cleaning Industry
- In household cleaning applications, Sodium N-Lauroyl Sarcosinate is used as an efficient, low-foam surfactant in dishwashing liquids, kitchen cleaners, and floor detergents. Compared with alkylbenzene sulfonates, it produces finer, easy-to-rinse foam with minimal residue.
- It demonstrates strong oil removal and dispersion ability, maintaining stable performance even in hard water and forming synergistic systems with anionic, nonionic, or amphoteric surfactants.
- Due to its excellent biodegradability and low environmental impact, it has become a preferred ingredient for eco-friendly cleaning formulations. In premium home care products, it also improves tactile comfort and reduces skin dryness.
Industrial Processing
- Sodium N-Lauroyl Sarcosinate serves as a wetting agent, emulsifier, and corrosion inhibitor in metalworking fluids. It forms a uniform adsorption film on metal surfaces, reducing surface tension and improving the cooling and lubrication performance of the formulation.
- In precision electronic and mechanical cleaning, it effectively removes oil, fingerprints, and residues while maintaining low-residue and anti-corrosion performance, making it suitable for high-precision applications.
- It also performs well in neutral or mildly alkaline systems due to its high chemical stability and hard-water resistance. In leather degreasing and electroplating pretreatment, it acts as a mild degreasing agent that balances strong cleaning power with material protection.
Textile and Dyeing Industry
- In textile and dyeing processes, Sodium N-Lauroyl Sarcosinate functions as a penetrant, dispersant, and dyeing auxiliary, improving dye uniformity and the softness of fabrics.
- It maintains stability under high temperature and electrolyte conditions while preventing excessive foaming. In reactive and acid dye systems, it enhances dye uptake and color fastness while improving the brightness and uniformity of fabrics.
- Because of its environmental safety and high biodegradability, it is increasingly used in eco-friendly textile auxiliaries.
Petrochemical Industry
- In petrochemical applications, Sodium N-Lauroyl Sarcosinate acts as a demulsifying and emulsifying additive in crude oil treatment and as a surface-active component in drilling fluids.
- It reduces interfacial tension, improves wetting, and prevents sludge agglomeration during drilling operations. As a demulsifier, it enhances oil–water separation and dehydration efficiency while reducing energy consumption.
- Its high activity at low temperatures makes it particularly suitable for oilfield operations in cold regions, while its cleaning and anti-deposition performance supports pipeline and equipment maintenance.
Agricultural and Pharmaceutical Industries
- In agrochemical formulations, Sodium N-Lauroyl Sarcosinate is widely used as an emulsifier, wetting agent, and dispersing aid, improving pesticide dispersion stability and spray adhesion on plant surfaces.
- It is compatible with emulsifiable concentrates (EW), suspension concentrates (SC), and wettable powders (WP), enhancing formulation uniformity and long-term stability.
- Because of its mildness and biodegradability, it is ideal for low-toxicity, environmentally friendly pesticide systems.
- In pharmaceuticals, Sodium N-Lauroyl Sarcosinate acts as a solubilizer and surface-active enhancer in topical preparations, improving drug solubility and skin absorption, and is used in ointments, lotions, and cleansing formulations.
Emerging Applications
- In recent years, Sodium N-Lauroyl Sarcosinate has shown potential in green chemistry and advanced material systems. Studies suggest that it can be used in bio-based cleaners, biodegradable polymer emulsions, and nanomaterial dispersions.
- Its excellent interfacial regulation capacity enhances the stability of emulsion polymerization processes and optimizes particle distribution.
- Additionally, it has been explored in battery slurries and biomass extraction systems as a low-toxicity, environmentally compatible surfactant alternative.
Storage & Handling
- Store in a dry, cool, and well-ventilated area.
- Keep away from moisture, heat, and acids.
- Seal containers tightly after use to maintain quality.
Usage Notice
- Avoid prolonged contact with eyes or mucous membranes.
- Handle with gloves in industrial settings.
- Stir well before blending into aqueous systems.
- Shampoo System: Sodium N-Lauroyl Sarcosinate 8%, Cocamidopropyl Betaine 6%, Glycerin 2%. Sodium N-Lauroyl Sarcosinate provides mild cleansing and rich foam while reducing irritation and improving skin feel.
- Toothpaste System: Sodium N-Lauroyl Sarcosinate 1.5%, Sodium Fluoride 0.24%, Silica 20%. Sodium N-Lauroyl Sarcosinate acts as a gentle foaming and cleansing agent, enhancing stain removal and oral comfort.
- Dishwashing Liquid: Sodium N-Lauroyl Sarcosinate 4%, Alkyl Polyglucoside 8%, Sodium Citrate 2%. Sodium N-Lauroyl Sarcosinate contributes to efficient degreasing and maintains low-foam, easy-rinse properties.
- Metal Cleaning Fluid: Sodium N-Lauroyl Sarcosinate 2%, Ethanolamine 1%, Rust Inhibitor 0.5%. Sodium N-Lauroyl Sarcosinate improves wetting and oil dispersion, ensuring cleaner metal surfaces.
- Textile Auxiliary: Sodium N-Lauroyl Sarcosinate 1%, Nonionic Surfactant 3%, Urea 1%. Sodium N-Lauroyl Sarcosinate enhances dye penetration and promotes color uniformity.
- Pesticide Emulsifier: Sodium N-Lauroyl Sarcosinate 2%, Calcium Dodecylbenzenesulfonate 1%, Silicone Oil 0.2%. Sodium N-Lauroyl Sarcosinate enhances emulsion stability and improves wetting efficiency.
- Preservative Cleaning Formula: Sodium N-Lauroyl Sarcosinate 3%, Isothiazolinone 0.05%, Ethanol 5%. Sodium N-Lauroyl Sarcosinate ensures uniform dispersion of the preservative and supports overall antimicrobial performance.
Packaging
- 200 kg per drum
- Custom packaging available upon request



