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4-Formylcinnamic acid

Also known as: (2E)-3-(4-Formylphenyl)acrylic acid, 3-(4-Formylphenyl)acrylic acid, p-Formylcinnamic acid, trans-4-Formylcinnamic acid, 4-Formylcinnamic acid, predominantly trans, 4-Formylcinnamic acid, 98%, predominantly trans, p-Formylcinnamic, 4-Formyl-zimtsaeure, EINECS 245-608-9, MFCD00006955

4-Formylcinnamic acid (CAS 23359-08-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H8O3 and a molecular weight of 176.169 g/mol. Key properties include a melting point of 251-254 °C (dec.)(lit.), a boiling point of 373.2±25.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 193.7±19.7 °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.
23359-08-2
Jingsj CID
J-1966021-0
Molecular Formula
C10H8O3
Molecular Weight
176.169 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point251-254 °C (dec.)(lit.)
Boiling Point373.2±25.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point193.7±19.7 °C
Exact Mass176.047348
PSA54.37000
LogP1.83
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.660

GHS Safety & Compliance

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

Customs & Trade Information

HS Code2918300090
Summary2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4-Formylcinnamic acid?

The CAS number of 4-Formylcinnamic acid is 23359-08-2.

What are the molecular formula and molecular weight of 4-Formylcinnamic acid?

4-Formylcinnamic acid has molecular formula C10H8O3 and molecular weight 176.169 g/mol.

Is 4-Formylcinnamic acid hazardous?

4-Formylcinnamic acid 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 4-Formylcinnamic acid?

For 4-Formylcinnamic acid, Upstream Products: 4-Bromobenzaldehyde, Acrylic acid, Malonic acid; Downstream Products: 3-(4-formylphenyl)propanoic acid, 4-Vinylbenzoic acid, 4-Vinylbenzaldehyde.

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

Last updated:

How to cite: Jingsj. "4-Formylcinnamic acid (CAS 23359-08-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1966021-0 (accessed 2026-11-09).

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