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more general categories information about this item 4. Semantic Terms 4. Semantic Terms Entity [STY:T071] (48056) Physical Object [STY:T072] (47583) Substance [STY:T167] (46174) Chemical [STY:T103] (46110) Chemical Viewed Functionally [STY:T120] (28747) Indicator, Reagent, or Diagnostic Aid [STY:T130] (903) Chemical Viewed Structurally [STY:T104] (44741) Organic Chemical [STY:T109] (44144) D02. Organic Chemicals D02. Organic Chemicals Organic Chemicals [MESH:D009930] (75987) Organometallic Compounds [MESH:D009942] (4369) Organotechnetium Compounds [MESH:D015609] (526) D03. Heterocyclic Compounds D03. Heterocyclic Compounds Heterocyclic Compounds [MESH:D006571] (56330) Heterocyclic Compounds, 1-Ring [MESH:D006573] (30631) Pyridines [MESH:D011725] (4775) Picolines [MESH:D010847] (222) Vitamin B 6 [MESH:D025101] (177) Pyridoxal [MESH:D011730] (94) D12. Amino Acids, Peptides, and Proteins D12. Amino Acids, Peptides, and Proteins Amino Acids [MESH:D000596] (5544) Amino Acids, Cyclic [MESH:D000598] (1612) Amino Acids, Aromatic [MESH:D024322] (990) Tryptophan [MESH:D014364] (161) Amino Acids, Essential [MESH:D000601] (1371) Tryptophan [MESH:D014364] (149) D27. Chemical Actions and Uses D27. Chemical Actions and Uses Pharmacologic Actions [MESH:D020228] (2566) Diagnostic Uses of Chemicals [MESH:D064907] (57) Radiopharmaceuticals [MESH:D019275] (22) Molecular Mechanisms of Pharmacological Action [MESH:D045504] (1155) Radiopharmaceuticals [MESH:D019275] (22) Specialty Uses of Chemicals [MESH:D020313] (713) Laboratory Chemicals [MESH:D019995] (233) Indicators and Reagents [MESH:D007202] (196) Radiopharmaceuticals [MESH:D019275] (22)
