IRONE ALPHA

dsm-firmenich

Available

neat or unspecified

single substance

Short profile

Olfactive Family according to source: Floral. The confirmed product profile combines iris-like, powdery, floral, woody, violet-like.

floral

iris-like

powdery

floral

woody

violet-like

Effect in a formula

Floral building block

Heart modifier

Accord bridge

Can build or modify floral hearts and connect adjacent fresh, green, or fruity facets.

From the source: Explicitly identifiable contributions in the source text: more body or volume, more radiance, a more natural impression, enhancement of olfactory presence.

Use and dosage

No publicly reliable numerical use range for this product grade. Sensorially test with dilution series and small steps.

No confirmed manufacturer use level for this exact product.

Behaviour and performance

Diffusionhigh – explicit source description

TenacityManufacturer score 7; not converted to time

Reported as stated by the source. Diffusion, tenacity and note impact are not combined into a single performance score.

Good areas of use

Violet

iris

floral accords

fruity accords

Chemical context

CAS54992-91-5

Chemical name(+-)-(E)-4-(2,5,6,6-Tetramethyl-2-cyclohexen-1- yl)-3-buten-2-one

FormulaC14H22O

Molecular weight206 g/mol

Function classKetone

Vapour pressure0.00772 Pa at 20 °C (0.0077 Pa)

Relative VP bandvery_low

The Pa value is a unit conversion only, not a temperature normalisation. VP band and molecular weight are not translated into evaporation hours.

At 20 °C, a vapor pressure of 0.00772 Pa (≈ 7.720e-3 Pa) was reported; relative physical band class: very_low. This is not a prediction of evaporation time, odor strength, diffusion, or skin/blotter duration.

Source: dsm-firmenich Studio – IRONE ALPHA

Open source

Last reviewed: 2026-09-07