Linear alkylbenzene (LAB) is a chemical substance with the CAS number 67774-74-7. It is a surfactant raw material produced from long-chain alkanes through a catalytic reforming process. It is characterized by a linear alkyl group on the benzene ring. LAB is a colorless to pale yellow liquid with a slight, distinctive odor. It has high solubility and stability, making it an important organic compound. LAB has a wide range of applications and uses, most notably as a detergent raw material. It is an essential component of nonionic surfactants in the synthesis of pickling agents and laundry detergents.

LAB's primary use is as a detergent raw material, and it is widely used in detergents, pickling, and chemical catalysis.

Detergent raw material: As a nonionic surfactant, it is used in cleaning product formulations.

Chemical catalysis: As a catalyst or solvent component, it is used in petrochemical production.

Pickling: Used in the cleaning process during metal surface treatment.