has part has part has_part nitrogen atom pnictogen molecular entity nitrogen molecular entity chebi_ontology CHEBI:7594 nitrogen molecular entities CHEBI:51143 CHEBI:25556 nitrogen compounds Europe::941 KEGG:C06061 Nitrogenous compounds Codex::941 LanguaL term definition: Food additive; technological purpose(s): packaging gas, propellant. nitrogen food additive