ammonium carbamate

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A salt, a carbamate of ammonium, NH₄NH₂CO₂, which is an intermediate in the manufacture of urea and a component of smelling salts.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun inorganic chemistry The ammonium salt of carbamic acid; it is used as a nitrogen fertilizer, and in the manufacture of urea

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a salt of carbamic acid that is used as a nitrogen fertilizer