Geosmin 1%

Rated 5.00 out of 5 based on 4 customer ratings
(4 customer reviews)


CAS No. 23333-91-7

Odour (decreasing): Fresh, earthy, wet. Very diffusive and powerful

Solvent: DPG to form a solution of Geosmin at 1%

Manufacturer: IFF / Pell Wall

Main Synonyms:  octahydro-4,8a-dimethyl-4a(2H)-naphthol

See below for more description and documentation



Description and usage notes:

First isolated by Bush Boake Allen (now part of IFF) and notoriously difficult to buy in small quantities. Here at 1% in DPG, this is geosmin bought pure from IFF, diluted by Pell Wall and still so strong it must be used with caution.

We recommend you dilute to 0.1%, 0.01% or less for blending.

Geosmin is the scent of warm earth, a freshly ploughed field, the first rain after a dry period, damp and deceptively powerful. Geosmin doesn’t seem particularly strong when you sniff the 1% solution, or even the 10% solution, but even a few drops can fill the room with the scent of turned earth.

Traces in a fragrance can give you a unique effect and greatly increase diffusion. There really isn’t anything else like Geosmin, even though other materials like 2-ethyl fenchol have a superficially similar scent.

According to Brown University: “Geosmin, which literally translates to ‘earth smell’ was scientifically identified more than 100 years ago. In soil, bacteria produce the chemical compound. In water, blue-green algae make it. Along with the pleasant scent of warm, moist soil, geosmin is also responsible for the muddy ‘off’ taste in some drinking water. That is why the substance is of interest to water purification experts and even vintners, who want to keep the benign but pungent substance out of their wine.” 

For those working on a larger scale, we also offer Geosmin at 10% in DPG and we can usually offer limited amounts of the pure product: please contact us for availability and pricing if that’s what you need.


Safety Data Sheet (note this SDS relates to the pure material, hazards are naturally reduced by dilution in DPG)

4 reviews for Geosmin 1%

  1. Rated 5 out of 5

    G (verified owner)

    Truly potent. Unmistakeable petrichor, like having weather in a bottle

    Came with Sylvamber gratuity for a thought provoking complement. Woody, natural, warm and nostalgic

  2. Rated 5 out of 5

    carlos silva (verified owner)

    Very potent…smells like wet earth after a rain.
    Amazing .

  3. Rated 5 out of 5

    lucapoier10 (verified owner)

    very intense (even at 1%) [in my knowledge on of the lowest Odor detection thresholds]-earthy-beetrooty – Petrichor (rain smell) – mouldy (like an old cellar with stone walls and dirt floor)

  4. Rated 5 out of 5

    kevin (verified owner)

    Very happy with purchase , this stuff is powerful smelling and it smells like damp woodland soil and very natural .
    There are dry mineral notes too which reminds me of the soil under the shed .
    recommended for people who love the smell of earth after rain , this is the exact fragrance .
    Was also sent a free sample of another nice earthy fragrance called Verdol and delivery was quick .

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