Hydratropic Aldehyde Dimethyl Acetal (2-Phenylpropionaldehyde Dimethyl Acetal)

Also known as: 2-Phenylpropionaldehyde dimethyl acetal, Benzene, (2,2-dimethoxy-1-methylethyl)-, BRN 2091958, (2,2-Dimethoxy-1-methylethyl)benzene, 1,1-Dimethoxy-2-phenylpropane (+10 more)

INCI: HYDRATROPIC ALDEHYDE DIMETHYL ACETAL

Hydratropic Aldehyde Dimethyl Acetal (2-Phenylpropionaldehyde Dimethyl Acetal) (CAS 90-87-9) is a cosmetic cosmetic ingredient functioning as Fragrance. EU Regulation 1223/2009 status: prohibited. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety, pharmaceutical, and food safety data.

View industrial chemical safety profile for CAS 90-87-9 →

Auto-generated CPSR Part A draft with source citations
Function
Fragrance
Safety Rating
GOOD

Chemistry & Identifiers

Formula
C11H16O2
MW
180.24 g/mol
EC Number
202-022-8
PubChem CID
62336
IUPAC Name
1,1-dimethoxypropan-2-ylbenzene
InChIKey
UFOUDYPOSJJEDJ-UHFFFAOYSA-N

Regulatory Status

EU EU Status prohibited
US US Status permitted
US Notes Permitted — no CFR restriction

For full compliance data across multiple jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Hydratropic Aldehyde Dimethyl Acetal (2-Phenylpropionaldehyde Dimethyl Acetal).

Calculate MoS for your specific formulation with the MoS Calculator.

HRIPT Human Patch Test Studies

1 human repeat insult patch test aggregated from dermatological literature.

Test Type N Sensitized Dose µg/cm² NESIL µg/cm² Potency
HMT - 0 2700 - -

ECHA REACH Registration

European Chemicals Agency REACH dossier and Substances of Very High Concern listing.

Registration Type
Full
Tonnage Band
1 - 10 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No

PubChem Annotations

Safety and regulatory annotations from PubChem (NCBI) aggregated sources.

Regulatory (4)
JECFA Number
1468
Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
JECFA Evaluation
1,1-DIMETHOXY-2-PHENYLPROPANE | 2004 | No safety concern at current levels of intake when used as a flavouring agent | TRS 928-JECFA 63/113 | FAS 54-JECFA 63/525
Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
JECFA Evaluation
2-PHENYLPROPIONALDEHYDE DIMETHYL ACETAL | 2004 | No safety concern at current levels of intake when used as a flavouring agent | TRS 928-JECFA 63/113 | FAS 54-JECFA 63/525
Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
JECFA Evaluation
alpha-METHYLPHENACETALDEHYDE DIMETHYL ACETAL | 2004 | No safety concern at current levels of intake when used as a flavouring agent | TRS 928-JECFA 63/113 | FAS 54-JECFA 63/525
Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Flavouring and nutrient Fragrance
Regulatory List Membership (2)
IFRA Fragrance Transparency List FDA Substances Added to Food (EAFUS)

Expert Verdict

Expert safety assessment and concern-level summary for Hydratropic Aldehyde Dimethyl Acetal (2-Phenylpropionaldehyde Dimethyl Acetal).

Regulatory Flags

fragrance-component ifra_fragrance fda_food_additive

Known Synonyms

2-Phenylpropionaldehyde dimethyl acetal Benzene, (2,2-dimethoxy-1-methylethyl)- BRN 2091958 (2,2-Dimethoxy-1-methylethyl)benzene 1,1-Dimethoxy-2-phenylpropane EINECS 202-022-8 FEMA No. 2888 Hydratropaldehyde dimethyl acetal Hydrotropaldehyde dimethyl acetal Hydrotropic aldehyde dimethyl acetal alpha-Methylphenacetaldehyde dimethyl acetal NSC 46115 2-Phenylpropanal dimethyl acetal 2-Phenylpropanal dimethylacetal UNII-H41WGL6C12

Chemical Function

Fragrance Flavouring and nutrient

Regulatory Lists

Europe IFRA Transparency food_additive; Substances Added to Food (formerly EAFUS) (2/2019)

Australian Status

AICIS status: listed

Cross-Vertical Safety Context

Same-CAS public records found in pharmaceutical and food safety data.

SOURCE ChEMBL / DrugCentral / FAERS DB_PHARMA CAS match

Pharmaceutical Data

Same-CAS rows from the pharmaceutical spoke database.

ChEMBL ID
CHEMBL3186598
View full pharmaceutical profile →
SOURCE EFSA / FDA GRAS food_additives

Food Safety Data

Same-CAS food additive or FDA GRAS records from the core public database.

Food Name
2-PHENYLPROPIONALDEHYDE DIMETHYL ACETAL
ADI
No safety concern at current levels of intake when used as a flavouring agent mg/kg bw
Food Category
flavoring
View full food safety profile →

Frequently Asked Questions

Is Hydratropic Aldehyde Dimethyl Acetal (2-Phenylpropionaldehyde Dimethyl Acetal) safe in cosmetics?

Hydratropic Aldehyde Dimethyl Acetal (2-Phenylpropionaldehyde Dimethyl Acetal) has a safety rating of "GOOD" in our database. EU status: prohibited. US status: permitted.

Is Hydratropic Aldehyde Dimethyl Acetal (2-Phenylpropionaldehyde Dimethyl Acetal) allowed in the EU?

Hydratropic Aldehyde Dimethyl Acetal (2-Phenylpropionaldehyde Dimethyl Acetal) EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Hydratropic Aldehyde Dimethyl Acetal (2-Phenylpropionaldehyde Dimethyl Acetal) do in cosmetics?

Hydratropic Aldehyde Dimethyl Acetal (2-Phenylpropionaldehyde Dimethyl Acetal) functions as: Fragrance. It is classified as a cosmetic ingredient in our database. CAS number: 90-87-9.

Is Hydratropic Aldehyde Dimethyl Acetal (2-Phenylpropionaldehyde Dimethyl Acetal) used outside cosmetics?

Hydratropic Aldehyde Dimethyl Acetal (2-Phenylpropionaldehyde Dimethyl Acetal) also appears in industrial chemical safety, pharmaceutical, and food safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.

Does Hydratropic Aldehyde Dimethyl Acetal (2-Phenylpropionaldehyde Dimethyl Acetal) have different safety status in cosmetics vs industrial chemicals?

Hydratropic Aldehyde Dimethyl Acetal (2-Phenylpropionaldehyde Dimethyl Acetal) is prohibited in EU cosmetics but has active industrial GHS classifications (H302).

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