Material reference
Heptanal
oily green pungent aldehyde
Role
top
CAS
111-71-7
MW
114.19 g/mol
BP
152.8 °C
Average use
2.0% Max In Concentrate%
Cost / g
$0.237
Profile
Heptanal is curated in this catalog as an aldehydic material, with a secondary reading of oily.
On the strip it reads oily green pungent aldehyde.
It is registered under CAS 111-71-7.
The catalog records an average working dose of 2.0% Max In Concentrate%, which is a starting point for a trial rather than a limit.
How it behaves
volatility index 0.81 · the openingA boiling point of 152.8 °C and a molecular weight of 114.19 g/mol give Heptanal a volatility index of 0.81, which places it in the opening of a composition.
It leaves the strip early and does its work in the first minutes, before the heart arrives.
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 Heptanal
What does Heptanal smell like?
Heptanal reads as aldehydic and oily, described in the catalog as oily green pungent aldehyde.
Is Heptanal a top, heart or base note?
Heptanal sits in the opening. Its volatility index of 0.81 is computed from a boiling point of 152.8 °C and a molecular weight of 114.19 g/mol, rather than assigned by hand. It leaves the strip early and does its work in the first minutes, before the heart arrives.
How much Heptanal should I use?
The catalog records an average working dose of 2.0% Max In Concentrate% for Heptanal. 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 Heptanal?
The closest materials in this catalog by olfactive profile and physical behaviour are Octanal (77.2% match), Nonanal (71.3% match) and Dodecanal (71.2% match). Closeness is scored on descriptor taxonomy and on measured properties, so the nearest match is the one that behaves most like Heptanal. Ranking ignores price.
What is the CAS number for Heptanal?
Heptanal is registered under CAS 111-71-7 in this catalog.
Compose with Heptanal
Drop Heptanal 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