Tris(4-aminophenyl)amine

Also known as: 4,4',4''-Triaminotriphenylamine, 4,4',4''-Nitrilotrianiline, 4,4',4''-Nitrilotris(aniline), 4,4',4''-Nitrilotris(benzenamine), N,N-bis(4-aminophenyl)benzene-1,4-diamine, N1,N1-Bis(4-aminophenyl)-1,4-benzenediamine, TAPA, Tris(4-aminophenyl)amine

Tris(4-aminophenyl)amine (CAS 5981-09-9) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C18H18N4 and a molecular weight of 290.36200 g/mol. Key properties include a melting point of 230ºC, a boiling point of 571.3ºC at 760 mmHg, a density of 1.276g/cm3 and a flash point of 294.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 5981-09-9
Jingsj CID: J-39128-6
Molecular Formula: C₁₈H₁₈N₄
Molecular Weight: 290.36200 g/mol
Category: Organic Bases
Last updated: 8/21/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point	230ºC
Boiling Point	571.3ºC at 760 mmHg
Density	1.276g/cm3
Flash Point	294.1ºC
Exact Mass	290.15300
PSA	81.30000
LogP	5.64660
Refractive Index	1.751

Customs & Trade Information

HS Code	2921590090
Summary	2921590090. other aromatic polyamines and their derivatives; 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 Tris(4-aminophenyl)amine?

The CAS number of Tris(4-aminophenyl)amine is 5981-09-9.

What are the molecular formula and molecular weight of Tris(4-aminophenyl)amine?

Tris(4-aminophenyl)amine has molecular formula C18H18N4 and molecular weight 290.36200 g/mol.

What are the upstream and downstream products of Tris(4-aminophenyl)amine?

For Tris(4-aminophenyl)amine, Upstream Products: Tris(4-nitrophenyl)amine, 1-Fluoro-4-nitrobenzene, p-Phenylenediamine.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Tris(4-aminophenyl)amine (CAS 5981-09-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39128-6 (accessed 2026-11-09).

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