Maltyl Isobutyrate

What Maltyl Isobutyrate smells like

Parchem describes maltyl isobutyrate as sweet and fruity with slight burnt, caramelised-sugar, jammy notes and a cotton-candy afterglow; ChemicalBook lists sweet strawberry, fruity, tropical berry and cotton candy. A flavourist panel found the neat odour sweet and brown and only slightly fruity, with raisin or dark-berry notes and caramel, malty, fermented qualities.

Leading note

Strawberry caramel

Clear facets

Caramel

Supporting facets

Jammy, cotton candy

Character

Sweet, warm

• strawberry
• caramel
• cotton candy
• jammy
• sweet

What makes Maltyl Isobutyrate distinctive

Maltol's caramel turned towards strawberry jam.

Where the descriptions disagree: Suppliers lead with strawberry; a flavourist panel found it brown and only slightly fruity, closer to raisin.

How Maltyl Isobutyrate is used

Used in gourmand and berry accords for a caramelised, jammy sweetness.

Typical role: modifier (used in small amounts to change the character of a blend).

How Maltyl Isobutyrate differs from similar materials

Maltol

Maltol is the caramel-candyfloss sweetener; its isobutyrate ester adds a fruity strawberry, jammy side.

Each difference compares the published descriptions of the two materials. Smell varies with grade, supplier and dilution; compare them side by side on blotters before substituting one for another.

Identity and classification

Type

Aroma chemical

Origin

Synthetic

Odour family

Gourmand / Fruity

Note position

Heart note

Physical form at room temperature

Liquid

Also known as

Maltol isobutyrate

CAS number

65416-14-0

Molecular formula

C10H12O4

Molecular weight

196.2 g/mol

IUPAC name

(2-methyl-4-oxopyran-3-yl) 2-methylpropanoate

The CAS number, formula and molecular weight are taken from PubChem compound 3354132, whose own record lists this CAS number; checked 24 October 2026.

Safety and compliance

Hazard classification of the neat substance, as PubChem summarises it, read 26 October 2026. Companies notifying the ECHA C&L Inventory classify it (1,448 reports): H317 may cause an allergic skin reaction (94.1% of reports). 86 of the reports find it does not meet the hazard criteria. A skin sensitiser classification concerns handling the neat material and the dose in a finished product; the IFRA Standards, where they apply, set the limits. Unless it is harmonised, this is the notifiers' own classification, not a binding one.

This page is general information, not a safety assessment or a specification. Confirm identity, composition, IFRA status and allergen content from your supplier's documents for the lot you hold.

Materials it works with

• Maltol

  Aroma chemical · Gourmand / Fruity — caramel, sweet, bready, cooked fruit

• Ethyl Maltol

  Aroma chemical · Gourmand / Fruity — candyfloss, caramel, sweet, jammy

• Furaneol

  Aroma chemical · Gourmand / Fruity — strawberry, caramel, jammy, sweet

Used in formulas and accords

Used in 4 published formulas

Maltyl Isobutyrate is an ingredient in 2 perfume formulas and 2 accords in the Formula & Accord Library.

Community formulas

• Pumpkin Accord

  Community Formula · Accord

• Strawberry Banana Milkshake Accord

  Community Formula · Accord

RUŌOD House Originals

Original compositions by RUŌOD House.

• Cherry Lacquer

  RUŌOD House Creation · listed as “Maltyl Isobutyrate 10% DPG”, at 10% in DPG

• Fur & Fruit

  RUŌOD House Creation · listed as “Maltyl Isobutyrate 10% DPG”, at 10% in DPG

Further reading

• Building a Gourmand Accord: Vanilla, Caramel and Beyond

  The materials of gourmand perfume — vanillin, ethyl maltol, coumarin, lactones, roasted notes — how to keep them wearable, and color and crystal problems.

Questions about Maltyl Isobutyrate

Sources

• PubChem — compound 3354132, checked 24 October 2026.
• PubChem — GHS classification (the ECHA C&L Inventory notifications and any harmonised EU entry), read 26 October 2026.
• Parchem — maltyl isobutyrate — distributor's description.
• ChemicalBook — 65416-14-0 — odour database.
• Fraterworks — Maltyl Isobutyrate — distributor's description.
• Olfactory profile: the RUŌOD Lab team's synthesis of the published descriptions above, reviewed 24 October 2026. Evidence: more than one published description. Classification and the short description: revision 1. Descriptions of odour are judgement, not measurement.