... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > organic ion > organic anion > carboxylic acid anion > putreanine(1+)

... > chemical entity > molecular entity > ion > organic ion > organic anion > carboxylic acid anion > putreanine(1+)

... > chemical entity > molecular entity > ion > anion > organic anion > carboxylic acid anion > putreanine(1+)

... > chemical entity > molecular entity > polyatomic entity > heteroatomic molecular entity > oxide > oxoanion > carboxylic acid anion > putreanine(1+)

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > chalcogen molecular entity > oxygen molecular entity > oxide > oxoanion > carboxylic acid anion > putreanine(1+)

... > chemical entity > molecular entity > polyatomic entity > polyatomic ion > polyatomic anion > oxoanion > carboxylic acid anion > putreanine(1+)

... > chemical entity > molecular entity > ion > polyatomic ion > polyatomic anion > oxoanion > carboxylic acid anion > putreanine(1+)

... > chemical entity > molecular entity > ion > anion > polyatomic anion > oxoanion > carboxylic acid anion > putreanine(1+)

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > organic amino compound > polyamine > diamine > N-substituted diamine > N-substituted putrescine > putreanine(1+)

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > pnictogen molecular entity > nitrogen molecular entity > organonitrogen compound > organic amino compound > polyamine > diamine > N-substituted diamine > N-substituted putrescine > putreanine(1+)

... > 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 > polyamine > diamine > N-substituted diamine > N-substituted putrescine > putreanine(1+)