PF
← Ingredient library
← prevnext →

ISO-BUTYRYL

CAS
—
EC
—
Material type
synthetic aroma chemical
Canonical source
arctander
Formulation

Usage guidance

Suggested min
—
Suggested max
—
Cost
—
Stock
—
Compatibility tags
fruityfreshcologne
How it behaves

Olfactory profile

Family
sweet
Note tendency
Top
Descriptors
sweetcreamy

The 'iso-butyryl' fragment typically denotes a small branched-chain acyl group found in fruity esters and aldehydes used in perfumery. In isolation these materials tend to smell sharp, green-fruity and slightly pungent — reminiscent of unripe apple, pear skin or a fatty-fresh top note that flashes off quickly. Without a more specific identifier this profile is a generalisation.AI · claude-opus-4-7

Intensity
6 / 10
Tenacity
3 / 10
Volatility
8 / 10
Members

The rest of this material

Composition, IFRA restriction figures, allergen concentrations and where this material is bought are part of Perfume Foundry’s curated library and need an account. Create one or sign in.

chemicals · No. 556

Arctander monograph

Perfume and Flavor Chemicals, page 232.

TOPtenacity · moderatepower · diffusive
sweetcreamycaramellic
MW
72.11
BP
—
MP
—
Sp.Gr.
—
Refractive n
—
Rotation
—
Appearance

Colorless liquid.

Solubility

Slightly soluble in water, soluble in alcohol, propylene glycol and oils, also in glycerin.

Odor

Powerful and diffusive, ethereal-creamy odor, in dilution just sweet and bland, but rather pleasant, caramellic dryout.

Flavor

Slightly buttery or creamy, but overall mostly caramellic taste.

Production

Produced from tertiary-Butyl-meta-xylol

Identity
Aliases · 3
4-MethylbutyrylButyric aldehydeButyryl
Compliance note. Restriction data is sourced directly from IFRA publications and preserved with its document excerpt. Perfume Foundry is a compliance-support tool — not a substitute for a qualified safety assessor (CPSR / PIF).