Option 1, CH3(CH2)10CH2O SO-3Na+, is a synthetic detergent known as sodium dodecyl sulfate (SDS) or sodium lauryl sulfate (SLS). It is commonly used in cleaning products and personal care products.

Option 2, [CH3(CH2)15-N-(CH3)3]+Br-, is not a synthetic detergent. It is a quaternary ammonium cation commonly known as cetyltrimethylammonium bromide (CTAB). CTAB is a surfactant and is used in various applications such as in hair care products, fabric softeners, and industrial cleaning agents. While it has similar properties to a detergent, it is not classified as a synthetic detergent.

Option 3, CH3(CH2)16COO-Na+, is a synthetic detergent called sodium stearate. It is commonly used in soap and cleaning products as a surfactant and emulsifying agent.

Option 4, CH3(CH2)16COO(CH2CH2O)nCH2CH2OH, is a synthetic detergent known as polyethylene glycol stearate. It is used as an emulsifying agent and surfactant in various cosmetics and personal