You could substitute "larutan" with "cecair", which means "liquid" in literal terms, but is more commonly used. "Larutan" sounds more like a chemical.

You could also substitute "pembersih" with "pencuci" if this solution is used for washing, i.e. with water. For example, "dishwashing liquid" is "cecair pencuci pinggan mangkuk". "Pembersih" is used in a more general sense, i.e. could be a spray.