Description

Sodium Methylundecyl Benzenesulfonate is a high-purity anionic surfactant derived from benzenesulfonic acid. This compound is valued for its excellent wetting, emulsifying, and dispersing properties in demanding industrial formulations. It serves as a critical performance additive for manufacturers in the agrochemical, textile, and specialty cleaning sectors who require reliable and consistent raw materials.

Application

• Agrochemical Formulations: Acts as a key wetting agent and dispersant in pesticide and herbicide concentrates.
• Textile Processing: Used as a scouring agent and leveling assistant in dyeing and finishing operations.
• Industrial & Institutional (I&I) Cleaners: Provides powerful emulsification in heavy-duty degreasers and hard surface cleaners.
• Oilfield Chemicals: Functions as a surfactant in drilling muds and enhanced oil recovery formulations.
• Polymerization: Serves as an emulsifier in emulsion polymerization processes for synthetic rubbers and plastics.
• Metal Working Fluids: Enhances the stability and performance of coolants and lubricants.

Basic Information

Product Name	Sodium Methylundecyl Benzenesulfonate
CAS No.	27987-00-4
Molecular Formula	C19H31NaO3S
Molecular Weight	362.50 g/mol
Synonyms	Sodium 4-Methylundecylbenzenesulfonate; Benzenesulfonic acid, 4-methylundecyl-, sodium salt; Methylundecylbenzenesulfonic acid sodium salt; Sodium 4-methylundecylbenzene-1-sulfonate; Surfactant S-101 (trade name); Anionic surfactant C19; Sodium alkylbenzenesulfonate (C12 branched)
EINECS	Contact for details

Quality Control

Our Sodium Methylundecyl Benzenesulfonate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for active matter content, ionic composition, and physical properties. A Certificate of Analysis (COA) documenting purity, assay, and other critical parameters is provided with each shipment to guarantee traceability and compliance.

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). This material is hygroscopic (moisture-sensitive); keep the original container tightly sealed to prevent absorption of atmospheric moisture which may affect product performance.

Specification

Item	Specification
Appearance	White to off-white powder or flakes
Identification (IR)	Conforms to structure
Assay (Active Matter)	Min. 95%
Moisture Content	Max. 2.0%
Sodium Sulfate	Max. 1.5%
pH (1% Solution)	7.0 - 9.0

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