{"brand":"Compound Laws","url":"https://compoundlaws.com/compounds/endomorphin-1/kentucky/","compound":{"slug":"endomorphin_1","name":"Endomorphin-1","same_as":"https://en.wikipedia.org/wiki/Endomorphin"},"jurisdiction":{"code":"KY","name":"Kentucky"},"as_of":"2026-07-18","answer":"As of July 18, 2026, Endomorphin-1 is legal to sell at retail in Kentucky. Unscheduled - legal as research-use-only; no operative instrument reaches a structurally-dissimilar opioid peptide. Controlling source: KRS 218A.010(9) (controlled substance analogue).","forms":[{"form":"all","label":"All forms","status":"legal","state_status":null,"federal_overlay":false,"headline":"Unscheduled - legal as research-use-only; no operative instrument reaches a structurally-dissimilar opioid peptide","rule_type":"permanent","tier":"unscheduled","schedule_class":null,"limit":null,"effective_date":null,"verified_at":"2026-07-18","confidence":"confirmed","verbatim_excerpt":"KRS 218A.010(9)(a): \"'Controlled substance analogue' ... means a substance: 1. The chemical structure of which is substantially similar to the structure of a controlled substance in Schedule I or II; AND 2. Which has a stimulant, depressant, or hallucinogenic effect on the central nervous system that is substantially similar to or greater than ...; or 3. ... which such person represents or intends ...\" (b) excludes approved-new-drug / investigational / not-for-human-consumption substances. [Conjunctive - structure prong fails.]","excerpt_source_url":"https://apps.legislature.ky.gov/law/statutes/statute.aspx?id=54047","citations":[{"title":"KRS 218A.010(9) (controlled substance analogue)","url":"https://codes.findlaw.com/ky/title-xviii-public-health/ky-rev-st-sect-218a-010/","pinpoint":null,"publisher":"Code mirror","type":"statute","primary":true,"official":true},{"title":"KRS 218A.010(34) (opiate def)","url":"https://apps.legislature.ky.gov/law/statutes/statute.aspx?id=54047","pinpoint":null,"publisher":"Code mirror","type":"statute","primary":false,"official":true}],"history":[]}],"neighbors":[{"code":"IL","status":"legal"},{"code":"IN","status":"legal"},{"code":"MO","status":"legal"},{"code":"OH","status":"legal"},{"code":"TN","status":"legal"},{"code":"VA","status":"legal"},{"code":"WV","status":"legal"}],"laws":[{"citation":"902 KAR 55:015 § 1 (Schedule I = incorporation of 21 CFR 1308.11 by reference); analog reach via KRS 218A.010(6) + (7). (Former statutory list KRS 218A.050 was repealed June 29, 2017.)","title":null,"official_url":"https://apps.legislature.ky.gov/law/kar/titles/902/055/015/9121/","source_label":"OFFICIAL","effective_date":null,"retrieved_date":"2026-06-19","text_hash":"584940202b9d43573efc93f665b11c07c0bb93b6ad93ef82b6f63a99be92c5e2"},{"citation":"KRS 218A.010(8), (9)","title":"Definitions for chapter -- 'controlled substance' includes a controlled substance analogue; definition of controlled substance analogue","official_url":"https://apps.legislature.ky.gov/law/statutes/statute.aspx?id=54047","source_label":"MIRROR","effective_date":null,"retrieved_date":"2026-07-20","text_hash":"9e787874586183ca3f61c3b65ac56210a2908b6a1d2cdbd3f5c0583dfcdeaab3"}]}