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(E)-4-phenylbut-3-en-2-one

Also known as: trans-4-Phenyl-3-buten-2-one, trans-Benzylideneacetone, (E)-Benzylideneacetone, Methyl styryl ketone, Benzalacetone, 4-Phenyl-3-buten-2-one, trans-Phenylvinyl methyl ketone, Methyl[(E)-styryl] ketone, Acetocinnamone, Cinnamyl methyl ketone

(E)-4-phenylbut-3-en-2-one (CAS 1896-62-4) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C10H10O and a molecular weight of 146.186 g/mol. Key properties include a melting point of 38.5-41ºC, a boiling point of 260.8±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 65.6±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H317 — May cause an allergic skin reaction and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1896-62-4
Jingsj CID
J-811-7
Molecular Formula
C10H10O
Molecular Weight
146.186 g/mol
Category
Solvents
Last updated
8/21/2026

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Physicochemical Properties

Melting Point38.5-41ºC
Boiling Point260.8±9.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point65.6±0.0 °C
Exact Mass146.073166
PSA17.07000
LogP2.17
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.563
Additional Propertypractically insoluble

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H317 — May cause an allergic skin reaction
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Activity & Biological Data

TargetPLA2
Additional Information[1]. Kwon B, et al. Benzylideneacetone, an immunosuppressant, enhances virulence of Bacillus thuringiensisagainst beet armyworm (Lepidoptera: Noctuidae). J Econ Entomol. 2008 Feb;101(1):36-41.

Customs & Trade Information

HS Code2914399090
Summary2914399090. other aromatic ketones without other oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of (E)-4-phenylbut-3-en-2-one?

The CAS number of (E)-4-phenylbut-3-en-2-one is 1896-62-4.

What are the molecular formula and molecular weight of (E)-4-phenylbut-3-en-2-one?

(E)-4-phenylbut-3-en-2-one has molecular formula C10H10O and molecular weight 146.186 g/mol.

Is (E)-4-phenylbut-3-en-2-one hazardous?

(E)-4-phenylbut-3-en-2-one has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H317 — May cause an allergic skin reaction; H319 — Causes serious eye irritation.

What are the upstream and downstream products of (E)-4-phenylbut-3-en-2-one?

For (E)-4-phenylbut-3-en-2-one, Upstream Products: Iodobenzene, 3,4-Dibromo-4-phenyl-2-butanone, 4-phenyl-3-buten-2-ol; Downstream Products: 5-Methyl-3-phenyl-1H-pyrazole, (R)-(-)-alpha-Methoxyphenylacetic acid, 5-Phenylcyclohexane-1,3-dione.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "(E)-4-phenylbut-3-en-2-one (CAS 1896-62-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-811-7 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.