| SubstanceDefinition | Substance (and derived classes: Chemical, Polymer, Protein, Nucleic_Acid, Structurally_Diverse) | 
 | identifier | Substance.Substance_Id | 
 | version | Version.Version_Number | 
 | status | Substance_Classification.Domain | 
 | category | (The derived class type: Chemical, Polymer, Protein, Nucleic_Acid, Structurally_Diverse) | 
 | classification | Substance_Classification.Substance_Classification and Substance_classification.Substance_Classification_Subtype | 
 | domain | Substance_Classification.Substance_Classification (and Code and Type) and Substance_Classification.Substance_Classification_Subtype | 
 | grade | Substance_Specified_Substance_Group_3.Grade | 
 | description | Substance.Comment | 
 | source | Substance.Reference_Source | 
 | note | n/a | 
 | manufacturer | n/a | 
 | supplier | n/a | 
 | moiety | Substance.Moiety | 
 | role | Moiety.Moiety_Role | 
 | identifier | Moiety.Moiety_Id | 
 | name | Moiety.Moiety_Name | 
 | stereochemistry | Moiety.Stereochemistry | 
 | opticalActivity | Moiety.Optical_Activity | 
 | molecularFormula | Moiety.Molecular_Formula | 
 | amount[x] | Moiety.Amount | 
 | amountType | Amount.Amount_Type | 
 | property | Substance.Property | 
 | category | Property.Property_Type | 
 | code | Property.Property_Name | 
 | parameters | Property.Property_Parameters | 
 | definingSubstance | Property.Substance_Id, Property.Substance_Name | 
 | amount[x] | Property.Amount | 
 | referenceRange | Amount.Reference_Range | 
 | source | Specified_Substance_Group_1.Characteristic_Attribute.Reference_Source | 
 | structure | Substance.Structure | 
 | stereochemistry | Structure.Stereochemistry | 
 | opticalActivity | Structure.Optical_Activity | 
 | molecularFormula | Structure.Molecular_Formula | 
 | molecularFormulaByMoiety | Structure.Molecular_Formula_By_Moiety | 
 | isotope | Structure.Isotope | 
 | identifier | Isotope.Nuclide_Id | 
 | name | Isotope.Nuclide_Name | 
 | substitution | Isotope.Substitution_Type | 
 | halfLife | Isotope.Nuclide_Half_Life | 
 | molecularWeight | Isotope.Molecular_Weight | 
 | method | Molecular_Weight.Molecular_Weight_Method | 
 | type | Molecular_Weight.Molecular_Weight_Type | 
 | amount | Molecular_Weight.Amount | 
 | molecularWeight | Structure.Molecular_Weight | 
 | technique | n/a | 
 | sourceDocument | Structure.Reference_Source | 
 | representation | Structure.Structural_Representation | 
 | type | Structural_Representation.Structural_Representation_Type | 
 | representation | Structural_Representation.Structural_Representation | 
 | format | n/a | 
 | document | Structural_Representation.Structural_Representation_Attachment | 
 | code | Substance.Substance_Code | 
 | code | Substance_Code.Code, Substance_Code.Code_System, Substance_Code.Code_System_Id | 
 | status | Substance_Code.Code_System_Status | 
 | statusDate | Substance_Code.Code_Change_Date | 
 | note | Substance_Code.Comment | 
 | source | Substance_Code.Reference_Source | 
 | name | Substance.Substance_Name | 
 | name | Substance_Name.Substance_Name | 
 | type | Substance_Name.Substance_Name_Type | 
 | status | n/a | 
 | preferred | n/a | 
 | language | Substance_Name.Language | 
 | domain | Substance_Name.Substance_Name_Domain | 
 | jurisdiction | Substance_Name.Jurisdiction | 
 | synonym | n/a | 
 | translation | n/a | 
 | official | Substance_Name.Official_Name | 
 | authority | Official_Name.Official_Name_Type | 
 | status | Official_Name.Official_Name_Status | 
 | date | Official_Name.Official_Name_Status_Change_Date | 
 | source | Substance_Name.Reference_Source | 
 | molecularWeight | Substance.Structure.Molecular_Weight | 
 | relationship | Substance.Reference_Information.Relationship | 
 | substanceDefinition[x] | Substance_Relationship.Related_Substance_Id | 
 | type | Substance_Relationship.Relationship_Type | 
 | isDefining | Substance_Relationship.Is_Defining | 
 | amount[x] | Substance_Relationship.Amount.Quantity | 
 | amountRatioHighLimit | Substance_Relationship.Amount.Quantity.High_Limit | 
 | amountType | Substance_Relationship.Amount_Type | 
 | source | Substance_Relationship.Reference_Source | 
 | sourceMaterial | Substance.Source_Material | 
 | type | Source_Material.Source_Material_Type | 
 | genus | Source_Material.Organism.Genus | 
 | species | Source_Material.Organism.Species | 
 | part | Source_Material.Part_Description.Part | 
 | countryOfOrigin | Source_Material.Country_Of_Origin |