What is c11 c13 isoparaffin?

C11 and C13 isoparaffins are branched-chain hydrocarbons derived from the refining of petroleum, specifically designed for use in various applications due to their low toxicity and high stability. These compounds are often used as solvents, in personal care products, and as base fluids in formulations. Their branched structure gives them desirable properties like low volatility and good solvency, making them effective in various industrial and consumer products.