stop end

I need to cap off a water connection which is the water pipe connector to an M15 hose pipe from a kitchen sprayer tap. I have included images so you can understand my problem. Can anyone tell me the best way to blank off that pipe. (That's the vertical brass pipe in the photos)

Hi I need to remove a pipe that ran to an american fridge as the previous owner decided cut and clamp it as opposed to cap the pipe under sink, do i use an end cap or compression stop end?