substanceto

Substanceto is a term used in chemical informatics and data modeling to denote the intended destination substance in a transformation or reaction step. In practical data schemas, substanceto functions as a field or identifier that links a process to its product, separate from the input substances involved in the reaction.

The name is a compound of “substance” and “to,” signaling the target substance of a given operation. It is typically implemented as a reference value, such as a string identifier or numeric key, that resolves to a canonical substance record in a database or ontology.

In typical usage, substanceto appears alongside other fields that describe a reaction or process, including substanceto_id, substancefrom, and reagents. It enables systems to track outcomes across complex workflows, simulations, or data exchanges. For example, in a reaction entry with inputs A and B, substanceto might reference C as the product, while separate records capture stoichiometry, conditions, and kinetics.

Substanceto is not a standardized chemical term and is largely a data-model construct. Its primary role is to enable explicit linkage to a product entry within software systems, rather than to convey chemical properties themselves. As such, its interpretation may vary between databases or applications, and it is commonly used in conjunction with related concepts such as substance, product, substrate, and reaction schema.

See also: substance (chemistry), product (chemistry), substrate, reaction schema, chemical informatics data models.