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2,4-Dinitrofluorobenzene

Also known as: 1-Fluoro-2,4-dinitrobenzene, DNFB, FDNB, Sanger's Reagent, 2,4-DNBF, 4-Fluoro-1,3-dinitrobenzene, 2,4-Dinitro-1-fluorobenzene, NSC 33519

2,4-Dinitrofluorobenzene (CAS 70-34-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H3FN2O4 and a molecular weight of 186.097 g/mol. Key properties include a melting point of 25-27 °C(lit.), a boiling point of 296.0±20.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 132.8±21.8 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
70-34-8
Jingsj CID
J-920681-9
Molecular Formula
C6H3FN2O4
Molecular Weight
186.097 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point25-27 °C(lit.)
Boiling Point296.0±20.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point132.8±21.8 °C
Exact Mass186.007690
PSA91.64000
LogP1.16
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.585
Additional Property400 mg/L (25 ºC)

GHS Safety & Compliance

Irritant / Health HazardSignal word: Warning
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H317 — May cause an allergic skin reaction
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation
  • H373 — May cause damage to organs through prolonged exposure

Customs & Trade Information

HS Code2904909090
SummaryHS:2904909090 sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2,4-Dinitrofluorobenzene?

The CAS number of 2,4-Dinitrofluorobenzene is 70-34-8.

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

2,4-Dinitrofluorobenzene has molecular formula C6H3FN2O4 and molecular weight 186.097 g/mol.

Is 2,4-Dinitrofluorobenzene hazardous?

2,4-Dinitrofluorobenzene has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H317 — May cause an allergic skin reaction.

What are the upstream and downstream products of 2,4-Dinitrofluorobenzene?

For 2,4-Dinitrofluorobenzene, Upstream Products: Fluorobenzene, 4-Fluorobenzeneboronic acid, 2,4-Dinitro-1-(trifluoromethoxy)benzene; Downstream Products: 4-[(2,4-Dinitrophenyl)amino]butanoic acid, 4-Fluoro-3-nitroaniline, 2-Fluoro-5-nitroaniline.

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-Dinitrofluorobenzene (CAS 70-34-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-920681-9 (accessed 2026-11-09).

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