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... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > pnictogen molecular entity > nitrogen molecular entity > organonitrogen compound > organic amino compound > amino alcohol > propanolamine > betaxolol

... > 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 > amino alcohol > propanolamine > betaxolol