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2,4-Dinitrophenylacetic acid

Also known as: (2,4-Dinitrophenyl)acetic acid, 2-(2,4-dinitrophenyl)acetic acid, Benzeneacetic acid, 2,4-dinitro-, 2,4-Dinitrobenzeneacetic acid, MFCD00007227, EINECS 211-398-2

2,4-Dinitrophenylacetic acid (CAS 643-43-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H6N2O6 and a molecular weight of 226.143 g/mol. Key properties include a melting point of 169-175 °C(lit.), a boiling point of 430.2±30.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 191.8±13.0 °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.
643-43-6
Jingsj CID
J-10358-2
Molecular Formula
C8H6N2O6
Molecular Weight
226.143 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point169-175 °C(lit.)
Boiling Point430.2±30.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point191.8±13.0 °C
Exact Mass226.022583
PSA128.94000
LogP0.90
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.637

GHS Safety & Compliance

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

Customs & Trade Information

HS Code2916399090
Summary2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2,4-Dinitrophenylacetic acid?

The CAS number of 2,4-Dinitrophenylacetic acid is 643-43-6.

What are the molecular formula and molecular weight of 2,4-Dinitrophenylacetic acid?

2,4-Dinitrophenylacetic acid has molecular formula C8H6N2O6 and molecular weight 226.143 g/mol.

Is 2,4-Dinitrophenylacetic acid hazardous?

2,4-Dinitrophenylacetic 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 2,4-Dinitrophenylacetic acid?

For 2,4-Dinitrophenylacetic acid, Upstream Products: Penicillin G sodium salt, 4-Nitrophenylacetic acid, Ethyl phenylacetate; Downstream Products: 4-Chloro-2-nitrophenylacetic acid, 2-(2,4-Dinitrophenyl)ethanol, Methyl 2,4-dinitrophenylacetate.

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

Last updated:

How to cite: Jingsj. "2,4-Dinitrophenylacetic acid (CAS 643-43-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-10358-2 (accessed 2026-11-09).

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