2-phenylpropanal is a member of the class of phenylacetaldehydes that is phenylacetaldehyde in which a hydrogen alpha to the aldehyde carbonyl group has been replaced by a methyl group.
Definition
2-phenylpropanal is a member of the class of phenylacetaldehydes that is phenylacetaldehyde in which a hydrogen alpha to the aldehyde carbonyl group has been replaced by a methyl group. The major species at pH 7.3.
Source: PubChem
US FDA substance register · UNII 8JKX55PKZQ · registered name 2-PHENYLPROPANAL · single chemical substance
Cosmetic roles
Safety & regulatory references
- Restricted
- International fragrance standard (IFRA)
Source: IFRA fragrance standards
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
More data — names, identifiers, properties, test records, literature
Names & identifiers
- CAS No.chemical registry number
- 93-53-8
- EC No.EU chemical inventory number
- 202-255-5
- DTXSIDUS EPA chemical ID
- DTXSID0052629
- DTXCIDUS EPA compound ID
- DTXCID1031202
- IUPAC
- 2-Phenylpropanal
- Molecular formula
- C9H10O
- Molecular weight
- 134.178 g/mol
Measured properties
- Appearance
- Liquid, [Alfa Aesar MSDS] · Colourless to pale yellow liquid, Intense, green, floral aroma reminiscent of hyacinth
- Boiling point
- 92.00 to 94.00 °C. @ 12.00 mm Hg · 202-205 °C
- Solubility
- Soluble in most fixed oils, Slightly soluble in propylene glycol, Insoluble in glycerin · Soluble (in ethanol)
- Density
- 0.998-1.006
Values measured on the substance itself, not a specification for a commercial raw material.
Source: PubChem
What products actually use it for
What the 8 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.
- Fragrance6
- Flavouring and nutrient2
Source: US EPA CompTox dashboard
Irritation and sensitisation studies
6 skin studies and 3 eye studies are on record.
The studies disagree (the most common conclusion covers 50%), so they do not establish that this ingredient is irritating. These tests are on the raw material itself; irritation at the amount in a finished product is a different question.
See all 9 studies
- High Frequency of Sensitization
skin sensitisation: in vitro · Screening · according to other guideline: as mentioned below - Moderate or Mild Irritation
skin irritation: in vivo · Screening · other guideline: refer below principle according to - Severe Irritation
skin irritation: in vivo · Screening · other guideline: as below according to - Not likely to be sensitizing
skin sensitisation · Screening · according to other guideline: as mentioned below - Category 6.3A (Category 2)
Skin Irritation · Read Across - SkinSens1
Skin Sensitization · QSAR Predicted - Corrosive or Irritation Persists for > 21 days
eye irritation: in vitro / ex vivo · Screening · other guideline: OECD Guideline 492 (Reconstructed Human Cornea-like Epithelium (RhCE) Test Method for Identifying Chemicals Not Requiring Classification and Labelling for Eye Irritation or Serious Eye Damage) according to - Severe Irritation
eye irritation: in vivo · Screening · other guideline: as below according to - Severe Irritation
eye irritation: in vivo · Screening · OECD Guideline 405 (Acute Eye Irritation / Corrosion) according to
Source: US EPA CompTox dashboard
Linked databases 14
- Australian Industrial Chemicals Inventory (AICIS)
- ChEBI
- ChEMBL
- EU CosIng ingredient list 2
- IFRA fragrance standards
- Korea toxic substances GHS register (NIER)
- NIST Chemistry WebBook
- PubChem 2
- UniChem cross-reference IDs
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata