4-Phenyl-3-Buten-2-one
Benzylideneacetone is a flavouring ingredient. Benzylideneacetone is present in hydrolysed soy protein Benzylideneacetone belongs to the family of Phenylpropenes. These are compounds containing a phenylpropene moeity, which consists of a propene substituent bound to a phenyl group. — Toxin and Toxin Target Database (T3DB)
- IUPAC name
- 4-phenylbut-3-en-2-one
- Molecular formula
- C10H10O
- Molecular weight
- 146.19 g/mol
- Exact mass
- 146.073164938 Da
- XLogP3
- 2.1
- Topological polar surface area
- 17.1 Ų
- Hydrogen-bond donors
- 0
- Hydrogen-bond acceptors
- 1
- Covalent units
- 1
- Defined stereocentres
- 0
Also known as
5 more reported names
External database identifiers
Evidence from additional scientific databases
NIH PubChem PUG-View
Attributed physical-property, hazard, environmental and use annotations.
- Boiling Point: 260 °C Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Physical Description: colourless to slightly yellow crystalline solid with a sweet, pungent, creamy, floral odour Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Solubility: insoluble in water; soluble in organic solvents, oils Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Solubility: very soluble (in ethanol) Source: Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Carcinogen Classification: No indication of carcinogenicity to humans (not listed by IARC). Source: Toxin and Toxin Target Database (T3DB)
- Note: This chemical does not meet GHS hazard criteria for 2.6% (50 of 1901) of reports. Source: European Chemicals Agency (ECHA)
- Signal: Warning Source: European Chemicals Agency (ECHA)
- GHS Hazard Statements: H315 (84.2%): Causes skin irritation [Warning Skin corrosion/irritation]; H317 (97.3%): May cause an allergic skin reaction [Warning Sensitization, Skin] Source: European Chemicals Agency (ECHA)
- Precautionary Statement Codes: P261, P264, P272, P280, P302+P352, P321, P332+P317, P333+P317, P362+P364, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
- ECHA C&L Notifications Summary: Aggregated GHS information provided per 1901 reports by companies from 22 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.; Reported as not meeting GHS hazard criteria per 50 of 1901 reports by companies.; There are 20 notifications provided by 1851 of 1901 reports by companies with hazard statement code(s).; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record
Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.
Additional source coverage and match status
| Source | Result | Checked |
|---|---|---|
| NIH PubChem PUG-View | Exact match | 2026-08-31 |
A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.
Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.