| Column | MySQL Type | Oracle Type | Nullable | Description | 
|---|---|---|---|---|
| WID | BIGINT | NUMBER | No | Warehouse idetification number for this chemical | 
         
| Name | VARCHAR | VARCHAR2(255) | No | Common name of the chemical | 
         
| Class | CHAR(1) | CHAR(1) | Yes | 'T' this is a class or family of related chemicals, else 'F' | 
         
| BeilsteinName | VARCHAR | VARCHAR2(50) | Yes | The Beilstein name of this chemical | 
         
| SystematicName | VARCHAR | VARCHAR2(255) | Yes | The systematic name for this chemical | 
         
| CAS | VARCHAR | VARCHAR2(50) | Yes | The Chemical Abstract Service number | 
         
| Charge | SMALLINT | NUMBER | Yes | Charge of the chemical | 
         
| EmpiricalFormula | VARCHAR | VARCHAR2(50) | Yes | The empirical formula of this chemical Format: { ElementSymbol Integer }+ E.g. 'H2O1', 'C2H6O1', 'Na1Cl1'.  | 
         
| MolecularWeightCalc | FLOAT | NUMBER | Yes | Molecular weight calculated from chemical formula. Units: Daltons.  | 
         
| MolecularWeightExp | FLOAT | NUMBER | Yes | Molecular Weight determined through experimentation. Units: Daltons. | 
         
| OctH2OPartitionCoeff | VARCHAR | VARCHAR2(50) | Yes | Octanol-water-partition coefficient | 
         
| PKA1 | FLOAT | NUMBER | Yes | First ionization potential | 
         
| PKA2 | FLOAT | NUMBER | Yes | Second ionization potential | 
         
| PKA3 | FLOAT | NUMBER | Yes | Third ionization potential | 
         
| WaterSolubility | CHAR(1) | CHAR(1) | Yes | 'T' if soluble in water, else 'F' | 
         
| Smiles | VARCHAR | VARCHAR2(255) | Yes | Ascii representation of the chemical structure Simplified Molecular Input Line Entry System http://www.epa.gov/medatwrk/databases/smiles.html  | 
         
| DataSetWID | BIGINT | NUMBER | No | Reference to the data set from which the entity came from | 
         
| Table | Column | 
|---|---|
| ChemicalAtom | ChemicalWID | 
| ChemicalBond | ChemicalWID | 
| EnzReactionCofactor | ChemicalWID | 
| EnzReactionAltCompound | PrimaryWID | 
| EnzReactionAltCompound | AlternativeWID | 
| PathwayLink | ChemicalWID | 
| CompoundMeasurement | Compound_ComponentCompounds | 
| CompoundMeasurement | Compound | 
| LabeledExtractWIDCompoundWID | CompoundWID | 
| ChannelWIDCompoundWID | CompoundWID | 
| Entry | OtherWID | 
| Support | OtherWID | 
| EnzReactionInhibitorActivator | CompoundWID | 
| Product | OtherWID | 
| Reactant | OtherWID | 
| InteractionParticipant | OtherWID | 
| RelatedTerm | OtherWID | 
| CitationWIDOtherWID | OtherWID | 
| CommentTable | OtherWID | 
| CrossReference | OtherWID | 
| CrossReference | CrossWID | 
| Description | OtherWID | 
| DBID | OtherWID | 
| SynonymTable | OtherWID | 
| ToolAdvice | OtherWID | 
| Name | Columns | 
|---|---|
| CHEMICAL_DWID_NAME | DataSetWID, Name | 
| CHEMICAL_NAME | Name | 
| CHEMICAL_BEILSTEINNAME | BEILSTEINNAME | 
| CHEMICAL_SYSTEMATICNAME | SYSTEMATICNAME | 
| CHEMICAL_CAS | CAS | 
| CHEMICAL_CHARGE | CHARGE | 
| CHEMICAL_EMPIRICALFORMULA | EMPIRICALFORMULA | 
| CHEMICAL_MOLEWEIGHTCALC | MOLECULARWEIGHTCALC | 
| CHEMICAL_MOLEWEIGHTEXP | MOLECULARWEIGHTEXP | 
| CHEMICAL_OCTH2OCOEFF | OCTH2OPARTITIONCOEFF | 
| CHEMICAL_PKA1 | PKA1 | 
| CHEMICAL_PKA2 | PKA2 | 
| CHEMICAL_PKA3 | PKA3 | 
| CHEMICAL_SMILES | SMILES | 
| CHEMICAL_DATASETWID | DATASETWID |