Is THC-P legal in Singapore?

Legal status

Class A controlled drug. Misuse of Drugs Act 1973 (Singapore), First Schedule, Part 1 (Class A Drugs), paragraph 1, entry (24), which reads "Cannabinol derivatives". THC-P is not named. Part 4 of the First Schedule provides that "cannabinol derivatives" "means any of the following substances", among them, at limb (d), "any tetrahydro or hexahydro derivative of 3-alkyl homologues of cannabinol". Cannabinol carries a pentyl chain at position 3, "6,6,9-trimethyl-3-pentylbenzo[c]chromen-1-ol" (PubChem CID 2543). THC-P is a tetrahydro compound with a heptyl chain at that position, "(6aR,10aR)-3-heptyl-6,6,9-trimethyl-6a,7,8,10a-tetrahydrobenzo[c]chromen-1-ol" (PubChem CID 6453074). Part 4's worked example (7), "3-Hexyl-1-hydroxy-7,8,9,10-tetrahydro-6,6,9-trimethyl-6H-dibenzo[b,d]pyran (also known as Parahexyl)", is also a tetrahydro 3-alkyl homologue, with a hexyl chain, which shows the limb reaching chains other than pentyl.

Consequences if caught

Second Schedule reach: none for THC-P as a substance, and conditional for a product. The Second Schedule carries 20 rows imposing "Death" and they name exactly eight terms: opium, morphine, diamorphine, cocaine, cannabis, cannabis mixture, cannabis resin and methamphetamine. THC-P is none of those eight, so as a substance the Second Schedule sets no capital band for it. A product is different: section 2 provides that "cannabis mixture" means "any mixture of vegetable matter containing tetrahydrocannabinol and cannabinol in any quantity", so a THC-P product that is vegetable matter containing tetrahydrocannabinol and cannabinol is also a cannabis mixture, and for unauthorised traffic in cannabis mixture, and for its unauthorised import or export, the Second Schedule sets "Death" where the quantity is "more than 1,000 grammes". Whether a given product is such a mixture is a fact about the material, not the statute. Trafficking in a Class A drug carries "Maximum 20 years and 15 strokes" with a minimum of "5 years and 5 strokes"; unauthorised import or export of a Class A drug carries "Maximum 30 years or imprisonment for life and 15 strokes" with a minimum of "5 years and 5 strokes"; unauthorised possession under section 8(a) carries "Maximum 10 years or $20,000 or both (subject to section 33(3B))". Unauthorised manufacture of a Class A drug carries "Maximum 30 years or imprisonment for life and 15 strokes" with a minimum of "10 years and 5 strokes".

If prescribed or medical

Not established here. Nothing read for this cell authorises possession. Do not rely on a foreign prescription without checking with the Health Sciences Authority before travelling.

Documentation

VERIFIED against the instrument. Instrument: Misuse of Drugs Act 1973 (Singapore). Sections: First Schedule, Part 1 (Class A Drugs), paragraph 1, entry (24); Part 4, the definition of cannabinol derivatives, limb (d) and worked examples (5) and (7). URL: https://sso.agc.gov.sg/Act/MDA1973, fetched 3 October 2026, current version as at 03 Oct 2026. Structures: PubChem CID 6453074 and CID 2543, fetched 3 October 2026. Searched this run in English, the language of the instrument, against the Misuse of Drugs Act 1973 current as at 03 Oct 2026, with hyphen variants normalised because the text prints U+2011 non-breaking hyphens: "THC-P" 0 hits, "THCP" 0, "cannabiphorol" 0, "heptyl" 2 hits, JWH-020 in Part 1 and DMHP in Part 4, neither of them THC-P. The placement rests on reading the Part 4 definition against the published structure, not on a named entry. All 20 Second Schedule rows carrying "Death" were read before the capital statement was written. Section 2's definition of "cannabis mixture" and the Second Schedule rows for unauthorised traffic in, and import or export of, cannabis mixture were read again on 3 October 2026 at https://sso.agc.gov.sg/Act/MDA1973?ProvIds=Sc2-, current version as at 03 Oct 2026, to restore the cannabis mixture condition an earlier rewrite of this cell had dropped.

Drug laws and enforcement change and vary within a country. This is not legal advice. Always confirm with Singapore’s embassy or official drug authority before traveling; penalties can be severe, including imprisonment.