Description

Fatty Acids, C12-18, Me Esters, Sulfonated, Sodium Salts is a high-purity anionic surfactant derived from natural fatty acid methyl esters, primarily used as a primary surfactant and foaming agent. This compound is valued for its excellent detergency, wetting properties, and compatibility with other anionic and nonionic surfactants in aqueous formulations. It is a critical raw material for manufacturers in the personal care, industrial & institutional cleaning, and textile processing industries seeking effective, biodegradable surfactant solutions.

Application

• Primary Surfactant in Liquid Detergents & Cleaners: Serves as a key foaming and cleaning agent in hand soaps, dishwashing liquids, and all-purpose cleaners.
• Personal Care Formulations: Used in shampoos, body washes, and bubble baths for its rich lather and mild cleansing properties.
• Textile Auxiliary: Functions as a wetting agent, emulsifier, and scouring aid in textile pretreatment and dyeing processes.
• Industrial & Institutional (I&I) Cleaning: A component in floor cleaners, hard surface cleaners, and vehicle wash formulations.
• Emulsion Polymerization: Acts as an anionic emulsifier in the production of synthetic latexes for paints, coatings, and adhesives.
• Agricultural Adjuvants: Enhances the spreading and wetting of pesticide and herbicide sprays on plant surfaces.

Basic Information

Product Name	Fatty Acids, C12-18, Me Esters, Sulfonated, Sodium Salts
CAS No.	149458-07-1
Molecular Formula	Typically C13H27NaO4S to C19H39NaO4S (Mixture)
Molecular Weight	~302.4 to ~386.6 g/mol (Mixture)
Synonyms	Sodium α-Sulfo Methyl Laurate; Sodium Methyl Ester Sulfonate (SMES); MES Surfactant; Fatty Acid Methyl Ester Sulfonate, Sodium Salt; Sulfonated Fatty Acid Methyl Ester Sodium Salt; α-Sulfo Fatty Acid Methyl Ester Sodium Salt; Methyl Ester Sulfonate (Na Salt); C12-18 Fatty Acids, Methyl Esters, Sulfonated, Sodium Salts
EINECS	Contact for details

Quality Control

Our Fatty Acids, C12-18, Me Esters, Sulfonated, Sodium Salts is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance, including assay of active matter, unreacted matter, and inorganic salt content. Certificates of Analysis (COA) documenting purity, pH, and other critical parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent caking or degradation due to moisture absorption. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to pale yellow paste or flakes
Active Matter (Assay)	Min. 92%
Unreacted Matter (Methyl Ester)	Max. 1.5%
Sodium Sulfate	Max. 2.5%
pH (1% Aqueous Solution)	6.0 - 8.5
Moisture Content	Max. 3.0%
Identification (IR)	Conforms

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