Description

Sodium n-Stearoyl-L-Serinate is a high-purity, synthetic amino acid-based surfactant derived from L-serine and stearic acid. This compound is valued for its excellent emulsifying, foaming, and conditioning properties, making it a versatile ingredient for demanding formulations. It is primarily sought after by manufacturers in the personal care, cosmetics, and pharmaceutical industries for creating mild, high-performance products.

Application

• Personal Care & Cosmetics: As a primary surfactant and emulsifier in facial cleansers, shower gels, shampoos, and shaving foams for its mildness and skin-friendly profile.
• Skin Care Formulations: Used in creams, lotions, and serums for its conditioning and moisturizing effects, helping to improve skin feel and texture.
• Pharmaceutical Topicals: Employed as an excipient in medicated creams, ointments, and dermatological preparations for its emulsifying stability and biocompatibility.
• High-End Toiletries: A key ingredient in premium liquid soaps, hand washes, and baby care products due to its gentle cleansing action and low irritation potential.
• Biodegradable Detergents: Suitable for formulating eco-friendly and specialty cleaning products where a readily biodegradable surfactant is required.

Basic Information

Product Name	Sodium n-Stearoyl-L-Serinate
CAS No.	58725-55-6
Molecular Formula	C21H40NNaO4
Molecular Weight	393.54 g/mol
Synonyms	N-Stearoyl-L-serine sodium salt; L-Serine, N-(1-oxooctadecyl)-, sodium salt; Sodium N-stearoylserinate; Stearoyl serine sodium salt; N-Octadecanoyl-L-serine sodium salt; SS (abbreviation); Acyl sarcosinate derivative (class)
EINECS	Contact for details

Quality Control

Our Sodium n-Stearoyl-L-Serinate is manufactured under a strict quality management system. Each batch is tested to ensure it meets high-purity standards suitable for cosmetic and pharmaceutical applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee supply consistency and regulatory compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture and caking.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	10.0 - 12.0%
pH (10% solution)	7.0 - 9.0
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.