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D01 Inorganic Chemicals D007287 + D01.625 Nitrogen Compounds D017672 + D01.625.075 Ammonium Compounds D000644 + D01.625.075.050 Ammonium Sulfate D000645
D01 Inorganic Chemicals D007287 + D01.875 Sulfur Compounds D013457 + D01.875.800 Sulfur Acids D013456 + D01.875.800.800 Sulfuric Acids D013464 + D01.875.800.800.850 Sulfates D013431 + D01.875.800.800.850.050 Ammonium Sulfate D000645