{"brand":"Compound Laws","url":"https://compoundlaws.com/compounds/endomorphin-1/kansas/","compound":{"slug":"endomorphin_1","name":"Endomorphin-1","same_as":"https://en.wikipedia.org/wiki/Endomorphin"},"jurisdiction":{"code":"KS","name":"Kansas"},"as_of":"2026-09-23","answer":"As of September 23, 2026, Endomorphin-1 is legal to sell at retail in Kansas. Unscheduled - legal as research-use-only; no operative instrument reaches a structurally-dissimilar opioid peptide. Controlling source: K.S.A. 65-4101(g) (controlled substance analog).","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":"2026-09-23","confidence":"confirmed","verbatim_excerpt":"K.S.A. 65-4101(g): \"'Controlled substance analog' means a substance that is intended for human consumption, AND at least one of the following: (A) The chemical structure ... is substantially similar ...; (B) the substance has a stimulant, depressant or hallucinogenic effect on the central nervous system substantially similar ...; or (C) ... such individual represents or intends ...\" [Disjunctive effect, BUT gated by 'intended for human consumption'; effect prong = stimulant/depressant/hallucinogenic only.]","excerpt_source_url":"https://ksrevisor.gov/statutes/chapters/ch65/065_041_0001.html","citations":[{"title":"K.S.A. 65-4101(g) (controlled substance analog)","url":"https://ksrevisor.gov/statutes/chapters/ch65/065_041_0001.html","pinpoint":null,"publisher":"Kansas Legislature","type":"statute","primary":true,"official":true},{"title":"K.S.A. 65-4101(ee) (opiate def)","url":"https://ksrevisor.gov/statutes/chapters/ch65/065_041_0001.html","pinpoint":null,"publisher":"Kansas Legislature","type":"statute","primary":false,"official":true}],"history":[]}],"neighbors":[{"code":"CO","status":"legal"},{"code":"MO","status":"legal"},{"code":"NE","status":"legal"},{"code":"OK","status":"legal"}],"laws":[{"citation":"K.S.A. 21-5705(a)","title":"Unlawful cultivation or distribution of controlled substances -- operative offense reaching controlled substance analogs","official_url":"https://ksrevisor.gov/statutes/chapters/ch21/021_057_0005.html","source_label":"OFFICIAL","effective_date":null,"retrieved_date":"2026-07-20","text_hash":"a02f31d36747718ba81cd90a0ab3f739a4bdd4f7170d349c855c2a1ca338c63e"},{"citation":"K.S.A. 65-4105(d) (Schedule I hallucinogens — does NOT name it; no tryptamine class); analog reach via K.S.A. 65-4101(g).","title":null,"official_url":"https://ksrevisor.gov/statutes/chapters/ch65/065_041_0001.html","source_label":"OFFICIAL","effective_date":null,"retrieved_date":"2026-06-19","text_hash":"3b14586483ae759637f8cf5f6e9066b2ec3ef1769217cd82acaef2a7a822cb53"}]}