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4-Phenoxyaniline

Also known as: 4-Aminophenyl phenyl ether, 4-Amino-1-phenoxybenzene, Benzenamine, 4-phenoxy-, p-Phenoxyaniline, 4-Aminodiphenyl Ether

4-Phenoxyaniline (CAS 139-59-3) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C12H11NO and a molecular weight of 185.222 g/mol. Key properties include a melting point of 82-84 °C(lit.), a boiling point of 320.0±25.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 155.8±16.4 °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.
139-59-3
Jingsj CID
J-15751-9
Molecular Formula
C12H11NO
Molecular Weight
185.222 g/mol
Category
Ethers
Last updated
8/21/2026

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Physicochemical Properties

Melting Point82-84 °C(lit.)
Boiling Point320.0±25.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point155.8±16.4 °C
Exact Mass185.084061
PSA35.25000
LogP2.36
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.619
Additional Property< 1 g/L (20 ºC)

GHS Safety & Compliance

IrritantSignal 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

Customs & Trade Information

HS Code2922299090
Summary2922299090. other amino-naphthols and other amino-phenols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof. 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 4-Phenoxyaniline?

The CAS number of 4-Phenoxyaniline is 139-59-3.

What are the molecular formula and molecular weight of 4-Phenoxyaniline?

4-Phenoxyaniline has molecular formula C12H11NO and molecular weight 185.222 g/mol.

Is 4-Phenoxyaniline hazardous?

4-Phenoxyaniline 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 4-Phenoxyaniline?

For 4-Phenoxyaniline, Upstream Products: Bromobenzene, 4-Aminophenol, Iodobenzene; Downstream Products: 1-(4-Phenoxyphenyl)guanidine, 4-Phenoxyphenyl isothiocyanate, 4-Phenoxyphenyl isocyanate.

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-Phenoxyaniline (CAS 139-59-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-15751-9 (accessed 2026-11-07).

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