[MusicTlk] Looking for the name of a classical music piece

[Vejas Vasiliauskas]

Hi, 
I hope you are all well. 
My parents had a bunch of classical music albums, and there was one piece whose name I just can't remember. It was in C major, and was a movement in a symphony, I think by Mozart, but when I look up Mozart Symphony in C I'm not finding it. I remember how the beginning sounded: the first 6 notes are e, g, f, e, d, c.  It was moderately paced. 
Does anyone have an idea of what this piece could be? If not, are there any resources I might be able to use to find it? 
Thank you, 
Vejas