Prenyl thioacetate: Aroma, Smell and Safety | PatientsCann UK Skip to main content Back to Sulphur Compounds Guide SPTA Prenyl thioacetate prenyl thioacetate, S-prenyl thioacetate pronounced: PREN-il thy-oh-ASS-uh-tate A close relative of the main skunk molecule, with a gassy, fuel-like twist. Skunk & dieselFormula: C7H12OSVery potent Aroma familySkunk FormulaC7H12OS Mass144.24 g/mol Main noteGassy S-(3-Methylbut-2-en-1-yl) ethanethioate · 144.24 g/mol The molecule Chemical structure This is the accurate skeletal structure of Prenyl thioacetate, drawn from PubChem data. Each corner and line-end is a carbon atom. The yellow S marks sulphur, the atom that gives this whole family its powerful smell. GassySkunkySavourySulphurous About What is Prenyl thioacetate? Prenyl thioacetate is a close chemical cousin of the main skunk molecule. It carries the same prenyl building block, with a small acetate group added. It was described as part of the prenylated sulphur family found in cannabis. Its smell leans gassy and fuel-like. It is one of the compounds thought to sit behind the “diesel” or “gas” character that some cultivars are known for. What the research says The Science Like the other members of this family, it appears in very small amounts and needs sensitive sulphur-detecting equipment to measure. It tends to rise and fall alongside the main skunk molecule as the plant matures and is cured. Because it is so new to science, most of what is known is about its smell rather than any effect in the body. Aroma snapshot How Prenyl thioacetate Smells Skunk & diesel family GassySkunkySavourySulphurous Smell strength: Very potent Strong even in small amounts, with a gassy, fuel-like edge. You might also smell it in: The wider world of savoury, sulphur-rich smells shared with cooked garlic and onion. Its role in the smell Part of the Whole Adds a gassy, savoury layer on top of the pure skunk note. Blended with terpenes, it helps build the ‘gas’ profiles many people look for. Good to know A Note on Safety Prenyl thioacetate is an aroma compound, present in cannabis in trace amounts. It is not a medicine and has no dose of its own. What matters for you is the whole product and how it is prescribed. Always choose and adjust your medicine with your prescriber and pharmacist, never by smell alone. Questions Prenyl thioacetate: Common Questions What does ‘gassy’ or ‘diesel’ cannabis mean? Some cultivars smell a little like fuel or solvent. Sulphur compounds like prenyl thioacetate are part of where that gassy character comes from, working together with the plant’s terpenes. Is it the same as the main skunk molecule? No, but they are close relatives from the same family. This one has an extra acetate group, which nudges the smell towards gas and fuel. Previous3-Methyl-2-butene-1-thiol NextDiprenyl sulphide Back to full Sulphur Compounds Guide Important: This page is for education only. It is not medical advice. Research into cannabis sulphur compounds is very new, and most work so far is about smell, not treatment. The garlic comparison is about chemistry, not proven health effects. Always speak to your prescriber before changing your treatment. PatientsCann UK does not recommend any specific cannabis product. References Oswald, I.W.H., Ojeda, M.A., Pobanz, R.J., Koby, K.A., Buchanan, A.J., Del Rosso, J., Guzman, M.A. and Martin, T.J. (2021) ‘Identification of a new family of prenylated volatile sulfur compounds in cannabis revealed by comprehensive two-dimensional gas chromatography’, ACS Omega, 6(47), pp. 31667-31676. doi: 10.1021/acsomega.1c04196. Russo, E.B. (2011) ‘Taming THC: potential cannabis synergy and phytocannabinoid-terpenoid entourage effects’, British Journal of Pharmacology, 163(7), pp. 1344-1364. doi: 10.1111/j.1476-5381.2011.01238.x. National Center for Biotechnology Information (2025) PubChem Compound Database. Bethesda: U.S. National Library of Medicine. Available at: https://pubchem.ncbi.nlm.nih.gov (Accessed: 3 August 2026).
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