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4-(Diphenylamino)benzaldehyde

Also known as: 4-(N,N-Diphenylamino)benzaldehyde, 4-Diphenylaminobenzaldehyde, 4-Formyltriphenylamine, p-Formyltriphenylamine, 4-Diphenylamino-benzaldehyde, 4-Diphenylamino Benzaldehyde, Benzaldehyde, 4-(diphenylamino)-, P-Formyltriphenylamine, P-N,N-Diphenylamino-benzaldehyde, 4-(N-phenylanilino)benzaldehyde, 4-(diphenylamino)-benzaldehyd

4-(Diphenylamino)benzaldehyde (CAS 4181-05-9) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C19H15NO and a molecular weight of 273.328 g/mol. Key properties include a melting point of 129-133 °C(lit.), a boiling point of 436.8±28.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 171.2±13.4 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4181-05-9
Jingsj CID
J-45203-9
Molecular Formula
C19H15NO
Molecular Weight
273.328 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point129-133 °C(lit.)
Boiling Point436.8±28.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point171.2±13.4 °C
Exact Mass273.115356
PSA20.31000
LogP5.22
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.671

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2922399090
Summary2922399090 other amino-aldehydes, amino-ketones and amino-quinones, other than those containing more than one kind of oxygen function; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4-(Diphenylamino)benzaldehyde?

The CAS number of 4-(Diphenylamino)benzaldehyde is 4181-05-9.

What are the molecular formula and molecular weight of 4-(Diphenylamino)benzaldehyde?

4-(Diphenylamino)benzaldehyde has molecular formula C19H15NO and molecular weight 273.328 g/mol.

Is 4-(Diphenylamino)benzaldehyde hazardous?

4-(Diphenylamino)benzaldehyde has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 4-(Diphenylamino)benzaldehyde?

For 4-(Diphenylamino)benzaldehyde, Upstream Products: Triphenylamine, N,N-Dimethylformamide, Dichloromethane; Downstream Products: 4-[Bis(4-bromophenyl)amino]benzaldehyde, [4-(Diphenylamino)phenyl]methanol, 4-Ethynyltriphenylamine.

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-(Diphenylamino)benzaldehyde (CAS 4181-05-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45203-9 (accessed 2026-11-09).

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