Linear alkylbenzene sulfonic acid (LABSA) is prepared commercially by sulfonating linear alkylbenzene (LAB). Linear alkylbenzene sulfonate (LAS), the world’s largest-volume synthetic surfactant, which includes the various salts of sulfonated alkylbenzenes, is widely used in household detergents as well as in numerous industrial applications.


Overview and Properties

  • Chemical Name: Linear Alkylbenzene Sulfonic Acid (LABSA)
  • Molecular Formula: C18H30O3S
  • CAS NO. 27176-87-0
  • Appearance: Yellowish-brown liquid
  • Solubility: Soluble in water and organic solvents
  • Chemical Classification: Anionic surfactant


LABSA finds extensive usage in several applications, including:

  • Household Detergents: LABSA is crucial in formulating laundry detergents, dishwashing liquids, and other cleaning agents. It provides excellent cleaning properties and effectively removes dirt, grease, and stains.
  • Industrial Cleaning: LABSA is utilized in various industrial cleaning applications, such as degreasers, floor cleaners, and heavy-duty detergents.
  • Textile Processing: It plays a vital role in textile processing, removing impurities and enhancing dyeing.
  • Leather Tanning: LABSA is used as a wetting agent in leather tanning, helping to facilitate the absorption of dyes and chemicals.
  • Agriculture: LABSA is a wetting and dispersing agent in formulating agricultural chemicals, pesticides, and fertilizers.
  • Emulsifiers and Foaming Agents: LABSA is a critical component in producing emulsifiers, dispersants, and foaming agents used in various industries.

Benefits and Advantages

  • Excellent Cleaning Power: LABSA exhibits high detergency and effectively removes dirt, stains, and grease.
  • Versatility: Its wide range of applications makes LABSA a versatile surfactant suitable for various industries.
  • Compatibility: LABSA can be easily combined with other surfactants and additives to enhance cleaning formulations.
  • Cost-Effective: LABSA offers a cost-efficient solution for formulating effective cleaning products.
  • Environmentally Friendly: LABSA is biodegradable and does not persist in the environment.

Handling Precautions

LABSA should be handled with care, and safety precautions should be followed:
a. Wear appropriate protective gear, including gloves and goggles, when handling LABSA.
b. Avoid direct contact with skin, eyes, and clothing. In case of contact, rinse with water immediately.
c. Store LABSA in a secure area, away from incompatible substances, heat, and ignition sources.
d. Follow proper disposal methods in compliance with local regulations.

Additional information



Chemical Name

Linear Alkylbenzene Sulfonic Acid (LABSA)

Molecular Formula





Yellowish-brown liquid


Soluble in water and organic solvents

Chemical Classification

Anionic surfactant

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