2-(3-Nitrophenyl)quinoxaline

Also known as: 2-(3-Nitro-phenyl)-quinoxaline, 2-(3-Nitrophenyl)-chinoxalin, 3-(3-Nitrophenyl)-chinoxalin, Quinoxaline, 2-(3-nitrophenyl)-

2-(3-Nitrophenyl)quinoxaline (CAS 5021-44-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C14H9N3O2 and a molecular weight of 251.24000 g/mol. Key properties include a melting point of 184-185ºC, a boiling point of 437.3ºC at 760mmHg, a density of 1.342g/cm3 and a flash point of 218.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 5021-44-3
Jingsj CID: J-1068817-2
Molecular Formula: C₁₄H₉N₃O₂
Molecular Weight: 251.24000 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	184-185ºC
Boiling Point	437.3ºC at 760mmHg
Density	1.342g/cm3
Flash Point	218.3ºC
Exact Mass	251.06900
PSA	71.60000
LogP	3.72820
Refractive Index	1.688

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 2-(3-Nitrophenyl)quinoxaline?

The CAS number of 2-(3-Nitrophenyl)quinoxaline is 5021-44-3.

What are the molecular formula and molecular weight of 2-(3-Nitrophenyl)quinoxaline?

2-(3-Nitrophenyl)quinoxaline has molecular formula C14H9N3O2 and molecular weight 251.24000 g/mol.

What are the upstream and downstream products of 2-(3-Nitrophenyl)quinoxaline?

For 2-(3-Nitrophenyl)quinoxaline, Upstream Products: o-Phenylenediamine, 2-Bromo-3'-nitroacetophenone, (3-Nitrophenyl)-oxo-acetaldehyde.

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. "2-(3-Nitrophenyl)quinoxaline (CAS 5021-44-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1068817-2 (accessed 2026-11-09).

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