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p-Phenetidine

Also known as: Phenetidine, 4-Ethoxyaniline, 4-Aminophenetole, p-Aminophenetole, 4-Aminoethoxybenzene, p-Aminophenol ethyl ether

p-Phenetidine (CAS 156-43-4) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C8H11NO and a molecular weight of 137.179 g/mol. Key properties include a melting point of 2-5 °C(lit.), a boiling point of 230.3±23.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 97.9±15.9 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H311 — Toxic in contact with skin and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
156-43-4
Jingsj CID
J-1110366-8
Molecular Formula
C8H11NO
Molecular Weight
137.179 g/mol
Category
Ethers
Last updated
8/21/2026

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Physicochemical Properties

Melting Point2-5 °C(lit.)
Boiling Point230.3±23.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point97.9±15.9 °C
Exact Mass137.084061
PSA35.25000
LogP0.89
Vapor Pressure0.1±0.5 mmHg at 25°C
Refractive Index1.527
Additional Propertypractically insoluble

GHS Safety & Compliance

Acute Toxicity / Health HazardSignal word: Danger
  • H302 — Harmful if swallowed
  • H311 — Toxic in contact with skin
  • H319 — Causes serious eye irritation
  • H332 — Harmful if inhaled
  • H334 — May cause allergy or asthma symptoms if inhaled

Customs & Trade Information

HS Code2922291000
Summary2922291000 4-methoxyaniline。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。Lowest tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of p-Phenetidine?

The CAS number of p-Phenetidine is 156-43-4.

What are the molecular formula and molecular weight of p-Phenetidine?

p-Phenetidine has molecular formula C8H11NO and molecular weight 137.179 g/mol.

Is p-Phenetidine hazardous?

p-Phenetidine has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H311 — Toxic in contact with skin; H319 — Causes serious eye irritation.

What are the upstream and downstream products of p-Phenetidine?

For p-Phenetidine, Upstream Products: Chloroethane, Diethylene glycol dimethyl ether, 4-Aminophenol; Downstream Products: Ethacridine, N-(4-Ethoxyphenyl)-3-hydroxy-2-naphthamide, 4-Ethoxyphenyl 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. "p-Phenetidine (CAS 156-43-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1110366-8 (accessed 2026-11-07).

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