Description

1-Methyl 2-Sulphooctadecanoate is a specialized anionic surfactant derived from stearic acid, valued for its unique combination of hydrophobic and hydrophilic properties. This compound is critical for formulators seeking to enhance the stability, emulsification, and surface activity of complex chemical systems. It is primarily required by manufacturers in the personal care, industrial cleaning, and textile processing industries for creating high-performance formulations.

Application

• As a primary emulsifier and stabilizer in cosmetic and personal care products, such as creams, lotions, and hair conditioners.
• As a key surfactant in industrial and institutional cleaning formulations, including hard surface cleaners and degreasers.
• As a wetting agent and dispersant in textile processing aids and dyeing applications.
• As a co-emulsifier in the production of polymer emulsions and latex products.
• As an additive in leather processing chemicals to improve fatliquoring and softening.
• In specialty agrochemical formulations as an adjuvant to enhance pesticide efficacy and spreading.

Basic Information

Product Name	1-Methyl 2-Sulphooctadecanoate
CAS No.	3076-26-4
Molecular Formula	C₁₉H₃₈O₅S
Molecular Weight	378.57 g/mol
Synonyms	Methyl 2-sulfostearate; Methyl 2-sulphooctadecanoate; 2-Sulphooctadecanoic acid methyl ester; Stearic acid, 2-sulfo-, methyl ester; Methyl α-sulfostearate; Sulfonated methyl stearate; Octadecanoic acid, 2-sulfo-, methyl ester
EINECS	Contact for details

Quality Control

Our 1-Methyl 2-Sulphooctadecanoate is produced under a stringent quality management system to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including assay, identification, and impurity profiling. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder or flakes
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Sulfate Ash	≤ 0.5%
pH (10% solution)	6.0 - 8.0

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