How to get the active/loaded Scene then turn the name of it into a string? [C#]

I am using Playerprefs to get ints and grab them for saving and such. And I have a very specific layout for it and to make it all come together I need to get the active scene and then turn the name of the active scene into a string that playerprefs can use.

SceneManagement.SceneManager.GetActiveScene().name