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3-Fluorophenyl isocyanate

Also known as: 3-Fluoro-1-isocyanatobenzene, 1-fluoro-3-isocyanatobenzene, ISOCYANIC ACID 3-FLUOROPHENYL ESTER, 3-Isocyanatofluorobenzene, Benzene, 1-fluoro-3-isocyanato-, MFCD00002015

3-Fluorophenyl isocyanate (CAS 404-71-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H4FNO and a molecular weight of 137.111 g/mol. Key properties include a boiling point of 166.9±23.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 52.8±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H302 — Harmful if swallowed and H312 — Harmful in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
404-71-7
Jingsj CID
J-19469-4
Molecular Formula
C7H4FNO
Molecular Weight
137.111 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point166.9±23.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point52.8±0.0 °C
Exact Mass137.027695
PSA29.43000
LogP2.88
Vapor Pressure1.7±0.3 mmHg at 25°C
Refractive Index1.505
Storage Conditions0-6°C

GHS Safety & Compliance

Flammable / IrritantSignal word: Warning
  • H226 — Flammable liquid and vapour
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H332 — Harmful if inhaled
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2929109000
Summary2929109000. other isocyanates. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3-Fluorophenyl isocyanate?

The CAS number of 3-Fluorophenyl isocyanate is 404-71-7.

What are the molecular formula and molecular weight of 3-Fluorophenyl isocyanate?

3-Fluorophenyl isocyanate has molecular formula C7H4FNO and molecular weight 137.111 g/mol.

Is 3-Fluorophenyl isocyanate hazardous?

3-Fluorophenyl isocyanate has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H302 — Harmful if swallowed; H312 — Harmful in contact with skin.

What are the upstream and downstream products of 3-Fluorophenyl isocyanate?

For 3-Fluorophenyl isocyanate, Upstream Products: 3-Fluoroaniline, Bis(trichloromethyl) carbonate, 1-Chloro-3-fluorobenzene; Downstream Products: (S)-N-[[3-(3-Fluorophenyl)-2-oxo-5-oxazolidinyl]methyl]acetamide, (5R)-3-(3-fluorophenyl)-5-(hydroxymethyl)-1,3-oxazolidin-2-one.

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

Last updated:

How to cite: Jingsj. "3-Fluorophenyl isocyanate (CAS 404-71-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19469-4 (accessed 2026-11-09).

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