Very much so (ammonia content, for one). See any IPA brewed with a large proportion of Simcoe hops as well.

Yup, it's a dis-stink-tive odor, quite different from human and dog. (Guess who empties the litter boxes in my household.)

Oh yeah, it is one of the strongest, most distinctive odors out there. If you've ever smelled it, you'd know it immediately, and it is damn impossible to clean out of anything. Washing fabric in a washing machine that has been peed on by a cat does nothing for the smell.