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Phenylpropiolaldehyde

Also known as: 3-Phenyl-2-propynal, 3-Phenylpropiolaldehyde, 3-phenylprop-2-ynal, 3-Phenylpropynal, Phenylpropynal, Phenylpropargyl aldehyde, Phenylpropargylaldehyde, Phenylacetylenecarboxaldehyde, Benzenepropiolaldehyde, Propiolaldehyde, phenyl-, phenylacetylene carboxaldehyde, 2-Propynal, 3-phenyl-

Phenylpropiolaldehyde (CAS 2579-22-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H6O and a molecular weight of 130.143 g/mol. Key properties include a melting point of 139 - 140ºC, a boiling point of 246.4±9.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 94.4±0.0 °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 Aug 21, 2026.

CAS No.
2579-22-8
Jingsj CID
J-19713-1
Molecular Formula
C9H6O
Molecular Weight
130.143 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point139 - 140ºC
Boiling Point246.4±9.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point94.4±0.0 °C
Exact Mass130.041870
PSA17.07000
LogP2.87
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.564

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 Phenylpropiolaldehyde?

The CAS number of Phenylpropiolaldehyde is 2579-22-8.

What are the molecular formula and molecular weight of Phenylpropiolaldehyde?

Phenylpropiolaldehyde has molecular formula C9H6O and molecular weight 130.143 g/mol.

Is Phenylpropiolaldehyde hazardous?

Phenylpropiolaldehyde 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 Phenylpropiolaldehyde?

For Phenylpropiolaldehyde, Upstream Products: N,N-Dimethylformamide, Phenylacetylene, 3-Phenyl-2-propyn-1-ol; Downstream Products: 1-Phenyl-1-pentyn-3-ol, Methyl cinnamate, trans-Chalcone.

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

Last updated:

How to cite: Jingsj. "Phenylpropiolaldehyde (CAS 2579-22-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19713-1 (accessed 2026-11-07).

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