chemical relationship has functional parent 2023-03-18T23:49:31Z obo:chebi#has_functional_parent Chemical A has functional parent Chemical B if there is chemical transformation through which chemical B can be produced from chemical A. For example, the relationship between a salt and a freebased compound is a "has functional parent" relationship. hydrocortamate hydrochloride (CHEBI:50854) has parent hydride hydrocortamate (CHEBI:50851)