What is detergent? Md. Saifur Rahman Detergent is sodium salt of long carbon benzene sulfonic acid. Sodium lauryl sulphate (C12H25SO4Na) is known as detergent.You may likeDo I need car insurance?What is car insurance?How could I get cheaper car insurance?What is auto insurance?Why Adulterant food is the barrier to sound health?What are the producers?What are food preservatives?What is food chain?What is tertiary consumer?