Material reference
Geosmin
After-rain petrichor earth
Role
base
CAS
16423-19-1
MW
182.3 g/mol
BP
270.0 °C
Average use
0.05% Max%
Cost / g
$5.000
Profile
Geosmin is curated in this catalog as an earthy material, with a secondary reading of damp earth.
On the strip it reads After-rain petrichor earth.
It is registered under CAS 16423-19-1.
The catalog records an average working dose of 0.05% Max%, which is a starting point for a trial rather than a limit.
How it behaves
volatility index 0.54 · the heartA boiling point of 270 °C and a molecular weight of 182.3 g/mol give Geosmin a volatility index of 0.54, which places it in the heart of a composition.
It arrives as the opening thins and holds the centre of a composition, which is where most of the character of a fragrance is decided.
The index runs from 0 for a material that barely leaves the strip to 1 for one that flashes off, and it is computed from boiling point and molecular weight. Inside a real formula the surrounding materials shift where the boundaries fall, so a material can read differently there than it does here.
Closest materials in the catalog
Scored on descriptor taxonomy and on measured physical behaviour, using the same ranking that drives the swap and reformulate tools. Price plays no part in the order.
Questions about Geosmin
What does Geosmin smell like?
Geosmin reads as earthy and damp earth, described in the catalog as After-rain petrichor earth.
Is Geosmin a top, heart or base note?
Geosmin sits in the heart. Its volatility index of 0.54 is computed from a boiling point of 270 °C and a molecular weight of 182.3 g/mol, rather than assigned by hand. It arrives as the opening thins and holds the centre of a composition, which is where most of the character of a fragrance is decided.
How much Geosmin should I use?
The catalog records an average working dose of 0.05% Max% for Geosmin. Treat that as the starting point for a trial: the right dose depends on what else is in the formula and what you want it to do there.
What can I use instead of Geosmin?
The closest materials in this catalog by olfactive profile and physical behaviour are Patchouli Alcohol (71.2% match), Evernyl (66.8% match) and Vetiver EO Java (62.8% match). Closeness is scored on descriptor taxonomy and on measured properties, so the nearest match is the one that behaves most like Geosmin. Ranking ignores price.
What is the CAS number for Geosmin?
Geosmin is registered under CAS 16423-19-1 in this catalog.
Compose with Geosmin
Drop Geosmin into a new formula and Fragrance Engine reads its role in the blend, the per-gram cost, and the lab sheet.
Start the 7-day trial