The detailed description of a substance, typically at a level beyond what is used for prescribing.

Identifier by which this substance is known.

A business level identifier of the substance.

Status of substance within the catalogue e.g. approved.

A high level categorization, e.g. polymer or nucleic acid, or food, chemical, biological, or a lower level such as the general types of polymer (linear or branch chain) or type of impurity (process related or contaminant).

If the substance applies to only human or veterinary use.

The quality standard, established benchmark, to which substance complies (e.g. USP/NF, Ph. Eur, JP, BP, Company Standard).

Textual description of the substance.

Supporting literature.

Textual comment about the substance's catalogue or registry record.

A company that makes this substance.

A company that supplies this substance.

Moiety, for structural modifications.

Role that the moiety is playing.

Identifier by which this moiety substance is known.

Textual name for this moiety substance.

Stereochemistry type.

Optical activity type.

Molecular formula for this moiety of this substance, typically using the Hill system.

Quantitative value for this moiety.

The measurement type of the quantitative value.

General specifications for this substance.

A code expressing the type of characteristic.

A value for the characteristic.

General information detailing this substance.

The molecular weight or weight range (for proteins, polymers or nucleic acids).

The method by which the molecular weight was determined.

Type of molecular weight such as exact, average (also known as. number average), weight average.

Used to capture quantitative values for a variety of elements. If only limits are given, the arithmetic mean would be the average. If only a single definite value for a given element is given, it would be captured in this field.

Structural information.

Stereochemistry type.

Optical activity type.

Molecular formula of this substance, typically using the Hill system.

Specified per moiety according to the Hill system, i.e. first C, then H, then alphabetical, each moiety separated by a dot.

The molecular weight or weight range (for proteins, polymers or nucleic acids).

The method used to elucidate the structure or characterization of the drug substance. Examples: X-ray, HPLC, NMR, Peptide mapping, Ligand binding assay.

Supporting literature about the source of information.

A depiction of the structure or characterization of the substance.

The kind of structural representation (e.g. full, partial).

The structural representation or characterization as a text string in a standard format.

The format of the representation e.g. InChI, SMILES, MOLFILE, CDX, SDF, PDB, mmCIF. The logical content type rather than the physical file format of a document.

An attached file with the structural representation or characterization e.g. a molecular structure graphic of the substance, a JCAMP or AnIML file.

Codes associated with the substance.

The specific code.

Status of the code assignment, for example 'provisional', 'approved'.

The date at which the code status is changed as part of the terminology maintenance.

Any comment can be provided in this field, if necessary.

Supporting literature.

Names applicable to this substance.

The actual name.

Name type, for example 'systematic', 'scientific, 'brand'.

The status of the name, for example 'current', 'proposed'.

If this is the preferred name for this substance.

Human language that the name is written in.

The use context of this name for example if there is a different name a drug active ingredient as opposed to a food colour additive.

The jurisdiction where this name applies.

A synonym of this particular name, by which the substance is also known.

A translation for this name into another human language.

Details of the official nature of this name.

Which authority uses this official name.

The status of the official name, for example 'provisional', 'approved'.

Date of official name change.

Supporting literature.

A link between this substance and another, with details of the relationship.

A pointer to another substance, as a resource or just a representational code.

For example "salt to parent", "active moiety", "starting material", "polymorph", "impurity of".

For example where an enzyme strongly bonds with a particular substance, this is a defining relationship for that enzyme, out of several possible substance relationships.

A numeric factor for the relationship, for instance to express that the salt of a substance has some percentage of the active substance in relation to some other.

For use when the numeric has an uncertain range.

An operator for the amount, for example "average", "approximately", "less than".

Supporting literature.

Data items specific to nucleic acids.

Data items specific to polymers.

Data items specific to proteins.

Material or taxonomic/anatomical source for the substance.

A classification that provides the origin of the raw material. Example: cat hair would be an Animal source type.

The genus of an organism, typically referring to the Latin epithet of the genus element of the plant/animal scientific name.

The species of an organism, typically referring to the Latin epithet of the species of the plant/animal.

An anatomical origin of the source material within an organism.

The country or countries where the material is harvested.