4-[2-(4-aminophenyl)ethynyl]aniline

Also known as: 4,4'-(Ethylene-1,2-diyl)dianiline, 4,4'-(Ethyne-1,2-diyl)dianiline, 4,4'-Diaminotolan, 4,4'-diaminodiphenylacetylene, 4,4'-diphenylethynediamine, 4-(2-(4-aminophenyl)ethynyl)benzenamine, 4-[2-(4-AMINOPHENYL)ETHYNYL]ANILINE, 4-[2-(4-AMINOPHENYL)ETHYNYL]PHENYLAMINE, BIS(4-AMINOPHENYL)ACETYLENE, Bis(4-aminophenyl)acetylene, tech

4-[2-(4-aminophenyl)ethynyl]aniline (CAS 6052-15-9) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C14H12N2 and a molecular weight of 208.25800 g/mol. Key properties include a melting point of 238-242ºC, a boiling point of 429.7ºCat 760 mmHg, a density of 1.2 g/cm3 and a flash point of 256ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 6052-15-9
Jingsj CID: J-89822-6
Molecular Formula: C₁₄H₁₂N₂
Molecular Weight: 208.25800 g/mol
Category: Organic Bases
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	238-242ºC
Boiling Point	429.7ºCat 760 mmHg
Density	1.2 g/cm3
Flash Point	256ºC
Exact Mass	208.10000
PSA	52.04000
LogP	3.41320
Refractive Index	1.686

Customs & Trade Information

HS Code	2921499090
Summary	2921499090 other aromatic monoamines and their derivatives; 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-[2-(4-aminophenyl)ethynyl]aniline?

The CAS number of 4-[2-(4-aminophenyl)ethynyl]aniline is 6052-15-9.

What are the molecular formula and molecular weight of 4-[2-(4-aminophenyl)ethynyl]aniline?

4-[2-(4-aminophenyl)ethynyl]aniline has molecular formula C14H12N2 and molecular weight 208.25800 g/mol.

What are the upstream and downstream products of 4-[2-(4-aminophenyl)ethynyl]aniline?

For 4-[2-(4-aminophenyl)ethynyl]aniline, Upstream Products: 4-Ethynylaniline, 4-Iodoaniline, Acetylene.

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. "4-[2-(4-aminophenyl)ethynyl]aniline (CAS 6052-15-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-89822-6 (accessed 2026-11-09).

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