Database/Perfuming/Phenylacetaldehyde Dimethyl Acetal
100% petroleum · ISO 16128

Is Phenylacetaldehyde Dimethyl Acetal natural?

No. Aromatic ring from petrochemical styrene-derived phenylacetaldehyde, acetalised with petrochemical methanol; no natural fragment.

INCI namePhenylacetaldehyde Dimethyl Acetal
CAS101-48-4
FormulaC10H14O2 · 166.22 Da
FunctionPerfuming
FeedstockManufactured synthetically from styrene (via styrene oxide/glycol routes),…

How we scored it

Phenylacetaldehyde (120/166 Da, from petrochemical styrene) + 2x OCH3 from methanol (petrochemical) = 0/166 = 0.0.
What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.

Where it comes from

Manufactured synthetically from styrene (via styrene oxide/glycol routes), a petrochemical, then reacted with methanol to form the acetal. Trace natural phenylacetaldehyde exists in some essential oils but is not commercially isolated for fragrance use.

In plain English

A synthetic fragrance ingredient made from phenylacetaldehyde and methanol, used to add a sweet, hyacinth-like floral note to perfumes.

CosIng definition: PADMA

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Structure

2D structure of Phenylacetaldehyde Dimethyl Acetal

2,2-dimethoxyethylbenzene

PubChem CID 60995 ↗

References

  1. 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
  2. 2Phenylacetaldehyde Dimethyl Acetal. PubChem CID 60995. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3PHENYLACETALDEHYDE DIMETHYL ACETAL. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4PHENYLACETALDEHYDE DIMETHYL ACETAL. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=PHENYLACETALDEHYDE%20DIMETHYL%20ACETAL