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2-phenyl-2-butenal

Also known as: 2-Phenyl-2-butenal, (E)+(Z), 2-Phenylcrotonaldehyde, alpha-ethylidene benzeneacetaldehyde, (E)-2-phenylbut-2-enal, 2-phenybut-2-enal, MFCD00053158, EINECS 224-567-0

2-phenyl-2-butenal (CAS 4411-89-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H10O and a molecular weight of 146.18600 g/mol. Key properties include a boiling point of 177 °C15 mm Hg(lit.), a density of 1.034 g/mL at 25 °C(lit.) and a flash point of 105.6 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
4411-89-6
Jingsj CID
J-30056-1
Molecular Formula
C10H10O
Molecular Weight
146.18600 g/mol
Category
Aromatic Hydrocarbons
Last updated
11/2/2026

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Physicochemical Properties

Boiling Point177 °C15 mm Hg(lit.)
Density1.034 g/mL at 25 °C(lit.)
Flash Point105.6 °C
Exact Mass146.07300
PSA17.07000
LogP2.28880
Refractive Indexn20/D 1.561(lit.)

GHS Safety & Compliance

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

Customs & Trade Information

HS Code2912299000
Summary2912299000. other cyclic aldehydes 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 2-phenyl-2-butenal?

The CAS number of 2-phenyl-2-butenal is 4411-89-6.

What are the molecular formula and molecular weight of 2-phenyl-2-butenal?

2-phenyl-2-butenal has molecular formula C10H10O and molecular weight 146.18600 g/mol.

Is 2-phenyl-2-butenal hazardous?

2-phenyl-2-butenal has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 2-phenyl-2-butenal?

For 2-phenyl-2-butenal, Upstream Products: β-Methoxystyrene, Phenylacetaldehyde, ch3cho; Downstream Products: 3-Methyl-2-phenylbutanal.

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

Last updated:

How to cite: Jingsj. "2-phenyl-2-butenal (CAS 4411-89-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30056-1 (accessed 2026-11-09).

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