3,4-dianilinocyclobut-3-ene-1,2-dione

3,4-二苯胺基-3-环丁烯-1,2-二酮

Also known as: 3,4-BIS(PHENYLAMINO)CYCLOBUT-3-ENE-1,2-DIONE, 3-Cyclobutene-1,2-dione, 3,4-bis(phenylamino)-, 1,2-Bis-anilino-cyclobutendione, 1,2-Dianilinocyclobut-3-ene-1,2-dione, bis(phenylamino)cyclobut-3-ene-1,2-dione, Quadratsaeure-dianilid, 3,4-Dianilino-3-cyclobutene-1,2-dione

3,4-dianilinocyclobut-3-ene-1,2-dione (CAS 33512-89-9) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C16H12N2O2 and a molecular weight of 264.27900 g/mol. It is also known as 3,4-BIS(PHENYLAMINO)CYCLOBUT-3-ENE-1,2-DIONE, 3-Cyclobutene-1,2-dione, 3,4-bis(phenylamino)- and 1,2-Bis-anilino-cyclobutendione. Key properties include a melting point of 270ºC, a boiling point of 410.7ºC at 760mmHg, a density of 1.443g/cm3 and a flash point of 157.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
33512-89-9
Jingsj CID
J-1524226-2
Molecular Formula
C16H12N2O2
Chinese Name
3,4-二苯胺基-3-环丁烯-1,2-二酮
Molecular Weight
264.27900 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point270ºC
Boiling Point410.7ºC at 760mmHg
Density1.443g/cm3
Flash Point157.7ºC

Frequently Asked Questions

What is the CAS number of 3,4-dianilinocyclobut-3-ene-1,2-dione?

The CAS number of 3,4-dianilinocyclobut-3-ene-1,2-dione is 33512-89-9.

What are the molecular formula and molecular weight of 3,4-dianilinocyclobut-3-ene-1,2-dione?

3,4-dianilinocyclobut-3-ene-1,2-dione has molecular formula C16H12N2O2 and molecular weight 264.27900 g/mol.

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

Last updated:

How to cite: Jingsj. "3,4-dianilinocyclobut-3-ene-1,2-dione (CAS 33512-89-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1524226-2 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.