As of November 12, 2026, there is no 9-OH ban in Missouri; 9-OH is legal to sell at retail (Not named in Missouri schedules; no kratom act, ban or class listing reaches 9-OH (RSMo 195.017; 19 CSR 30-1.002)), and no pending ban or effective date is on file.
Compound Analytics. “Is 9-OH Banned in Missouri? No, Legal (2026).” Compound Laws, https://compoundlaws.com/bans/9-oh/missouri/. Accessed November 13, 2026.
Compound Laws, published by Compound Analytics, reports the record: statutes verbatim, official citations, enforcement facts and verification dates. Nothing here is legal advice and nothing here describes how to get around a law. A jurisdiction with no verified row is reported as not yet verified, never as legal. Found an error? Corrections policy.