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

Textual comment.

Chemicals may be stoichiometric or non-stoichiometric.

Identifier by which this substance is known.

High level categorisation, e.g. polymer or nucleic acid.

Supporting literature.

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.

Quantitative value for this moiety.

General specifications for this substance, including how it is related to other substances.

Description todo.

Description todo.

A field that should be used to capture parameters that were used in the measurement of a property.

Identifier for a substance upon which a defining property depends.

Description todo.

Quantitative value for this property.

General information detailing this substance.

Structural information.

Stereochemistry type.

Optical activity type.

Molecular formula.

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

Applicable for single substances that contain a radionuclide or a non-natural isotopic ratio.

Substance identifier for each non-natural or radioisotope.

Substance name for each non-natural or radioisotope.

The type of isotopic substitution present in a single substance.

Half life - for a non-natural nuclide.

Quantitative values for this isotope.

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.

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

Supporting literature.

Molectular structural representation.

The type of structure (e.g. Full, Partial, Representative).

The structural representation as text string in a format e.g. InChI, SMILES, MOLFILE, CDX.

An attached file with the structural representation.

Codes associated with the substance.

The specific code.

Status of the code assignment.

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 substence.

The actual name.

Name type.

Language of the name.

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.

Details of the official nature of this name.

Which authority uses this official name.

The status of the official name.

Date of official name change.

Supporting literature.

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

Data items specific to polymers.