Synonyms: L-Citrullin;L-Cit-OH;L-Citrulline;N5-(Aminocarbonyl)ornithine;L-Citrulline (Fermentation);H-Cit-OH;.delta.-Ureidonorvaline;2-Amino-5-uredovaleric acid;Ngamma-carbamylornithine;delta-Ureidonorvaline;N~5~-(aminocarbonyl)ornithine;2-amino-5-(carbamoylamino)pentanoic acid;L-Citrulline;(2S)-2-amino-5-(carbamoylamino)pentanoic acid;Ornithine, N5-carbamoyl-, L- (8CI);L-Ornithine, N5-(aminocarbonyl)-;Ornithine, N5-(aminocarbonyl)-;Citrulline, L-;Ornithine, N5-carbamoyl-, L-;Citrulline;L-Ornithine,N5-(aminocarbonyl)-;.alpha.-Amino-.delta.-ureidovaleric acid;N5-(Aminocarbonyl)-L-ornithine;alpha-Amino-delta-ureidovaleric acid;N(.delta.)-Carbamylornithine;