Benzaldehyde Diethyl Acetal

What Benzaldehyde Diethyl Acetal smells like

ChemicalBook gives the odour of benzaldehyde diethyl acetal as green bitter almond and notes that it has been suggested for perfumes because it is more stable to alkali than the aldehyde, though it does not lend the power or the character of the free aldehyde.

Leading note

Bitter almond

Supporting facets

Green

Character

Soft

• bitter almond
• green

What makes Benzaldehyde Diethyl Acetal distinctive

A gentler, more stable bitter almond than benzaldehyde.

How Benzaldehyde Diethyl Acetal is used

Used where a bitter-almond note has to be more stable than benzaldehyde itself, such as in alkaline products.

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

How Benzaldehyde Diethyl Acetal differs from similar materials

Benzaldehyde*

Benzaldehyde is the sharp, powerful bitter-almond aldehyde; ChemicalBook notes that the diethyl acetal is more stable to alkali but lacks the power and character of the free aldehyde. (compared directly by a cited source)

An asterisk marks a difference that a cited source states directly. The others compare the published descriptions of each material. Smell varies with grade, supplier and dilution; compare them side by side on blotters before substituting one for another.

Formulation considerations

Does not have the power or the full character of free benzaldehyde.

Identity and classification

Type

Aroma chemical

Origin

Synthetic

Odour family

Gourmand / Green

Note position

Heart note

Physical form at room temperature

Liquid

Also known as

(Diethoxymethyl)benzene

CAS number

774-48-1

Molecular formula

C11H16O2

Molecular weight

180.24 g/mol

IUPAC name

diethoxymethylbenzene

The CAS number, formula and molecular weight are taken from PubChem compound 69884, 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 (1,430 reports): H302 harmful if swallowed (100% of reports). 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

• Benzaldehyde

  Aroma chemical · Gourmand / Fruity — almond, cherry, sweet

• Benzaldehyde Dimethyl Acetal

  Aroma chemical · Floral / Gourmand — sweet, floral, almond

• Heliotropin

  Aroma chemical · Powdery / Gourmand — powdery, almond, vanilla, floral

Used in formulas and accords

Used in 2 published formulas

Benzaldehyde Diethyl Acetal is an ingredient in 1 perfume formula and 1 accord in the Formula & Accord Library.

Community formulas

• Paper Accord

  Community Formula · Accord · listed as “Benzaldehyde DEA”

RUŌOD House Originals

Original compositions by RUŌOD House.

• Cherry Lacquer

  RUŌOD House Creation

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 Benzaldehyde Diethyl Acetal

Sources

• PubChem — compound 69884, checked 24 October 2026.
• PubChem — GHS classification (the ECHA C&L Inventory notifications and any harmonised EU entry), read 26 October 2026.
• ChemicalBook — Benzaldehyde diethyl acetal (774-48-1) — odour database.
• PubChem — (diethoxymethyl)benzene (CID 69884) — odour database.
• Olfactory profile: the RUŌOD Lab team's synthesis of the published descriptions above, reviewed 26 October 2026. Evidence: few published descriptions; treat the detail with caution. Classification and the short description: revision 1. Descriptions of odour are judgement, not measurement.