I don't tink you should use compound to remove the scratch. It's not a mirror finish you want but a brush finish. I would use a surface conditionnar medium with a hand pad or you can use a wood block with green blendex. Just gently rub the surface where the scratch is, be patient it's stainless it's hard and long to do. You have to press harder where the scratch is and gently remove the pressure when you are getting further from the scratch.
Good luck
