{"brand":"Compound Laws","url":"https://compoundlaws.com/compounds/endomorphin-1/missouri/","compound":{"slug":"endomorphin_1","name":"Endomorphin-1","same_as":"https://en.wikipedia.org/wiki/Endomorphin"},"jurisdiction":{"code":"MO","name":"Missouri"},"as_of":"2026-07-18","answer":"As of July 18, 2026, Endomorphin-1 is legal to sell at retail in Missouri. Unscheduled - legal as research-use-only; no operative instrument reaches a structurally-dissimilar opioid peptide. Controlling source: RSMo 195.010(7) (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":"RSMo 195.010(7): \"'Controlled substance analogue' ... the chemical structure of which is substantially similar to the chemical structure of a controlled substance in Schedule I or II AND ... (a) which has a stimulant, depressant, or hallucinogenic effect ... substantially similar ...; or (b) ... which that individual represents or intends ...\" [Conjunctive - structure prong fails.]","excerpt_source_url":"https://revisor.mo.gov/main/OneSection.aspx?section=195.010","citations":[{"title":"RSMo 195.010(7) (controlled substance analogue)","url":"https://revisor.mo.gov/main/OneSection.aspx?section=195.010","pinpoint":null,"publisher":"Missouri Legislature","type":"statute","primary":true,"official":true},{"title":"RSMo 195.010 (opiate def)","url":"https://revisor.mo.gov/main/OneSection.aspx?section=195.010","pinpoint":null,"publisher":"Missouri Legislature","type":"statute","primary":false,"official":true}],"history":[]}],"neighbors":[{"code":"AR","status":"legal"},{"code":"IL","status":"legal"},{"code":"IA","status":"legal"},{"code":"KS","status":"legal"},{"code":"KY","status":"legal"},{"code":"NE","status":"legal"},{"code":"OK","status":"legal"},{"code":"TN","status":"legal"}],"laws":[{"citation":"Mo. Exec. Order 24-10 (Aug. 1, 2024)","title":"Executive Order 24-10 -- directing DHSS to designate foods containing unregulated psychoactive cannabis products as coming from an unapproved food source / containing an unapproved food additive, and to embargo and condemn such foods; directing Division of Alcohol and Tobacco Control to prohibit sale on liquor-licensed premises","official_url":"https://www.sos.mo.gov/library/reference/orders/2024/eo10","source_label":"OFFICIAL","effective_date":null,"retrieved_date":"2026-07-02","text_hash":"40421b2949322e510eb7b3788221c96354a0c74238486b7cc83398124ca8bdc4"},{"citation":"RSMo 195.017.2(5) (Schedule I hallucinogens — enumerated, 4-HO-MET absent); RSMo 195.010(7) (analogue definition); RSMo 579.068 (the only offense that deploys \"analogue,\" and only for fentanyl/carfentanil)","title":null,"official_url":"https://revisor.mo.gov/main/OneSection.aspx?section=195.017","source_label":"OFFICIAL","effective_date":null,"retrieved_date":"2026-06-19","text_hash":"e236a8b51b88a4b867cc47b4d3096a3d974935397766950cd39f51fb092957cb"}]}