... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > chalcogen molecular entity > oxygen molecular entity > organooxygen compound > carboxamide > peptide > (D-Ala(2)-mephe(4)-gly-ol(5))enkephalin

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > chalcogen molecular entity > organochalcogen compound > organooxygen compound > carboxamide > peptide > (D-Ala(2)-mephe(4)-gly-ol(5))enkephalin

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > heteroorganic entity > organochalcogen compound > organooxygen compound > carboxamide > peptide > (D-Ala(2)-mephe(4)-gly-ol(5))enkephalin

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > pnictogen molecular entity > nitrogen molecular entity > organonitrogen compound > carboxamide > peptide > (D-Ala(2)-mephe(4)-gly-ol(5))enkephalin

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > heteroorganic entity > organonitrogen compound > carboxamide > peptide > (D-Ala(2)-mephe(4)-gly-ol(5))enkephalin

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > pnictogen molecular entity > nitrogen molecular entity > amide > primary amide > carboxamide > peptide > (D-Ala(2)-mephe(4)-gly-ol(5))enkephalin

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > organic amino compound > peptide > (D-Ala(2)-mephe(4)-gly-ol(5))enkephalin

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > pnictogen molecular entity > nitrogen molecular entity > organonitrogen compound > organic amino compound > peptide > (D-Ala(2)-mephe(4)-gly-ol(5))enkephalin

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > heteroorganic entity > organonitrogen compound > organic amino compound > peptide > (D-Ala(2)-mephe(4)-gly-ol(5))enkephalin