4-AcO-DMT in Timor-Leste: not individually verified

Also known as: psilacetin

Not individually verified

We have not confirmed that 4-AcO-DMT specifically is scheduled in Timor-Leste, so this page gives no legal status. Publishing a guess here would be worse than publishing nothing. What we do know is the governing national drug law, below.

What is on record: Not confirmed. Lei n.º 2/2017 carries no closing statement that would let an absence read as a settled negative, so the finding below is reported as unconfirmed rather than closed. 4-AcO-DMT (psilacetin, O-acetylpsilocin) is not named by that name anywhere in Lei n.º 2/2017's tables. Its two closest named relatives sit in Table II-A: psilocybin at item 31 ("Psilocibina - fosfatodiidrogenado de 3-(2-dimetila-minoetil)-4-indolilo") and psilocin at item 32 ("Psilocina - 3-(-2-dimetilaminoetil)-4-(hidroxi-indol)"). Psilocybin is itself the phosphorylated prodrug of psilocin, so the table already shows that the drafters distinguished a prodrug from its parent by naming both separately rather than relying on a clause to reach one from the other. 4-AcO-DMT is a different prodrug of psilocin again, carrying an acetyl group on the 4-hydroxyl position instead of psilocybin's phosphate group; its formula, C14H18N2O2, differs from psilocin's, C12H16N2O, by that acetyl group, so it is not an alternative arrangement of psilocin's own atoms and fails the ordinary chemical meaning of "isómero" for the same reason 1P-LSD and 5-MeO-DMT fail it against their own parent compounds. It is also not a salt of psilocin. Table II-A's closing clause reaches chemical-specific isomers and salts only, not prodrugs or esters, so 4-AcO-DMT is reached by neither name nor that clause. This reading is as printed 25 January 2017, read on 7 October 2026; no later amending law has been found (see the search recorded below).

Confirm directly with Timor-Leste’s national drug authority or your own embassy before you rely on anything.

What Timor-Leste HAS confirmed for related substances

DMTa related compound, not 4-AcO-DMT
DMT is named directly in Table II-A of Lei n.º 2/2017's Anexo II, item 12: "DMT - N-N-dimetiltriptamina" (N,N-dimethyltryptamine), alongside five other named tryptamines in the same table (DET, DPT, Etriptamina, Bufotenina and the psilocybin/psilocin pair). Table II-A's closing clauses also reach DMT's salts and its chemical-specific isomers. Whether a plant preparation containing DMT, such as ayahuasca, is itself reached is a separate question answered on ayahuasca's own page, turning on the fact that Table II-A, unlike Table II-B, carries no preparations clause; that question does not affect DMT's own status, which is named outright. Article 2, paragraph 1, subparagraph d, defines "droga" as any plant, substance or preparation covered by Tables I to IV; article 3 makes the tables integral to the law. This reading is as printed 25 January 2017, read on 7 October 2026.
Lei n.º 2/2017, de 25 de Janeiro, "Lei de Combate ao Tráfico Ilícito de Drogas", Anexo II, Tabela II-A item 12 · articles 2, 3, 6, 7, 9, 10, 11 and 26 · preamble lines naming Lei n.º 5/1997 da Indonésia and Lei n.º 5/2013 · Jornal da República, Série I, N.º 4, 25 January 2017, pages 59 to 82. https://www.mj.gov.tl/jornal/public/docs/2017/serie_1/SERIE_I_NO_4.pdf (sha256 700f7867e6cff713f06a6fcb6da245ea1186582fe66309d193080ce0b7406cd6). Read on 7 October 2026. · Verified October 8, 2026
Psilocybina related compound, not 4-AcO-DMT
Named. Tabela II-A of Anexo II to Lei n.º 2/2017, de 25 de Janeiro, carries two separate entries: item 31, "Psilocibina - fosfatodiidrogenado de 3-(2-dimetila-minoetil)-4-indolilo" (Psilocybin, dihydrogen phosphate ester of 3-(2-dimethylaminoethyl)-4-indolyl), and item 32, "Psilocina - 3-(-2-dimetilaminoetil)-4-(hidroxi-indol)" (Psilocin, 3-(2-dimethylaminoethyl)-4-(hydroxyindole)). Both the phosphorylated prodrug and its active dephosphorylated metabolite are named directly, a related but separate finding worth stating together rather than treating as one entry. The mushroom itself, as plant or fungal material, is not separately named in either table; Table II-A's closing clause reaches salts and isomers of its listed entries, not preparations, so a psilocybin mushroom or a preparation of one is a separate, unreached question from the two named compounds, the same structural distinction that closing clause produces for ayahuasca, khat and peyote under this law. The mushroom's absence from a separate named entry is stated as in force on 25 January 2017, Lei n.º 2/2017's own enactment date, and does not rule out a later amendment this session did not find.
Lei n.º 2/2017, de 25 de Janeiro, preamble and Anexo II, Tabela II-A items 31, 32 and closing clause, and articles 2(d), 3(1), 6, 7, 9, 26 · Jornal da República, Série I, N.º 4, 25 January 2017, pp. 60-82 · https://www.mj.gov.tl/jornal/public/docs/2017/serie_1/SERIE_I_NO_4.pdf (sha256 700f7867e6cff713f06a6fcb6da245ea1186582fe66309d193080ce0b7406cd6, fetched 2026-10-07, read 2026-10-07) · Verified October 8, 2026

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