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4-Bromo-2,3,5,6-tetrafluorobenzonitrile

Also known as: 4-Bromotetrafluorobenzonitrile, 2,3,5,6-Tetrafluoro-4-bromobenzonitrile, 4-Bromo-2,3,5,6-tetrafluorobenzonitrile 98%, Perfluoro-4-bromobenzonitrile, 4-bromotetrafluorophenyl cyanide, Benzonitrile, 4-bromo-2,3,5,6-tetrafluoro-

4-Bromo-2,3,5,6-tetrafluorobenzonitrile (CAS 17823-40-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7BrF4N and a molecular weight of 253.979 g/mol. Key properties include a melting point of 77-79ºC(lit.), a boiling point of 203.7±35.0 °C at 760 mmHg, a density of 1.9±0.1 g/cm3 and a flash point of 77.0±25.9 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
17823-40-4
Jingsj CID
J-15870-3
Molecular Formula
C7BrF4N
Molecular Weight
253.979 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point77-79ºC(lit.)
Boiling Point203.7±35.0 °C at 760 mmHg
Density1.9±0.1 g/cm3
Flash Point77.0±25.9 °C
Exact Mass252.915024
PSA23.79000
LogP1.58
Vapor Pressure0.3±0.4 mmHg at 25°C
Refractive Index1.508

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H332 — Harmful if inhaled
  • H335 — May cause respiratory irritation

Frequently Asked Questions

What is the CAS number of 4-Bromo-2,3,5,6-tetrafluorobenzonitrile?

The CAS number of 4-Bromo-2,3,5,6-tetrafluorobenzonitrile is 17823-40-4.

What are the molecular formula and molecular weight of 4-Bromo-2,3,5,6-tetrafluorobenzonitrile?

4-Bromo-2,3,5,6-tetrafluorobenzonitrile has molecular formula C7BrF4N and molecular weight 253.979 g/mol.

Is 4-Bromo-2,3,5,6-tetrafluorobenzonitrile hazardous?

4-Bromo-2,3,5,6-tetrafluorobenzonitrile has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H315 — Causes skin irritation.

What are the upstream and downstream products of 4-Bromo-2,3,5,6-tetrafluorobenzonitrile?

For 4-Bromo-2,3,5,6-tetrafluorobenzonitrile, Upstream Products: Pentafluorobenzonitrile, Lithium bromide, 4-Amino-2,3,5,6-tetrafluorobenzonitrile.

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-Bromo-2,3,5,6-tetrafluorobenzonitrile (CAS 17823-40-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-15870-3 (accessed 2026-11-09).

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