# Synthesis--Regulation { "id": "S2001009087", "title": "Synthesis--Regulation", "url": "/topics/S2001009087", "kind": "topic-directory", "aeo_cohort": "topic-directory", "provider": "lcsh", "revision": "fd3f08c15fa30eb9", "catalogue_revision": "f050b5d4780b1289", "numeric_address": "9839389121842390594", "address_version": "morton4x16-v1", "coordinates": [ 0, 477, 5094, 64512 ], "answer_status": "Directory metadata; local answer requires separate source review", "truth_status": "Subject descriptor, not a factual answer or a demonstrated knowledge gap" } Use as a topical subdivision under individual chemicals and groups of chemicals. Directory metadata is not a factual answer or evidence of a global knowledge gap. Source: https://id.loc.gov/authorities/subjects/sh2001009087 No owner-reviewed local answer yet.