"a salt of carbamic acid that is used as a nitrogen fertilizer"@en-us . . "0"^^ . "ammonium carbamate"@en-us . . "14744291-n"^^ . . . . "0"^^ . "114744291"^^ . . . . "ammonium carbamate"^^ . "110569978"@en-us . . "113902432"@en-us .