2,7-Dinitro-9H-fluoren-9-one

2,7-二硝基-9-芴酮

Also known as: 2,7-Dinitro-9-fluorenone, 2,7-Dinitrofluorenone, 2,7-Dinitrofluoren-9-one, 9-Fluorenone, 2,7-dinitro-, 9-Oxo-2,7-dinitrofluorene, NSC 86561, MFCD00001153, EINECS 250-695-1

2,7-Dinitro-9H-fluoren-9-one (CAS 31551-45-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C13H6N2O5 and a molecular weight of 270.197 g/mol. It is also known as 2,7-Dinitro-9-fluorenone, 2,7-Dinitrofluorenone and 2,7-Dinitrofluoren-9-one. Key properties include a melting point of 292-295 °C(lit.), a boiling point of 504.2±43.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 263.5±21.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 31551-45-8
Jingsj CID: J-24184-9
Molecular Formula: C₁₃H₆N₂O₅
Chinese Name: 2,7-二硝基-9-芴酮
Molecular Weight: 270.197 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	292-295 °C(lit.)
Boiling Point	504.2±43.0 °C at 760 mmHg
Density	1.6±0.1 g/cm3
Flash Point	263.5±21.0 °C
Exact Mass	270.027679
PSA	108.71000
LogP	3.24
Vapor Pressure	0.0±1.3 mmHg at 25°C
Refractive Index	1.727

Customs & Trade Information

HS Code	2914700090
Summary	HS: 2914700090 halogenated, sulphonated, nitrated or nitrosated derivatives of ketones and quinones, whether or not with other oxygen function Tax rebate rate:9.0% Supervision conditions:none VAT:17.0% MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2,7-Dinitro-9H-fluoren-9-one?

The CAS number of 2,7-Dinitro-9H-fluoren-9-one is 31551-45-8.

What are the molecular formula and molecular weight of 2,7-Dinitro-9H-fluoren-9-one?

2,7-Dinitro-9H-fluoren-9-one has molecular formula C13H6N2O5 and molecular weight 270.197 g/mol.

What are the upstream and downstream products of 2,7-Dinitro-9H-fluoren-9-one?

For 2,7-Dinitro-9H-fluoren-9-one, Upstream Products: 2,7-dinitro-9H-fluorene, 9-Fluorenone, 9-Fluorenol; Downstream Products: 2,7-Dihydroxy-9-fluorenone, 2,7-Dichloro-9-fluorenone, 2,7-diiodo-9H-fluoren-9-one.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2,7-Dinitro-9H-fluoren-9-one (CAS 31551-45-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-24184-9 (accessed 2026-10-28).

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