4-Chloro-1,2-naphthalenedione

Also known as: 4-chloro-1,2-naphthoquinone, 4-chloronaphthalene-1,2-dione, 4-CHLORO-[1,2]NAPHTHOQUINONE, 1,2-Naphthalenedione, 4-chloro-, 1,2-Naphthoquinone, 4-chloro-, 4-Chlor-[1,2]naphthochinon, 4-chloro-o-naphthoquinone, AURORA KA-5009, RARECHEM BW GA 0351, Zinc02552024

4-Chloro-1,2-naphthalenedione (CAS 6655-90-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C10H5ClO2 and a molecular weight of 192.598 g/mol. Key properties include a boiling point of 320.1±42.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 134.7±28.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 6655-90-9
Jingsj CID: J-896357-3
Molecular Formula: C₁₀H₅ClO₂
Molecular Weight: 192.598 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	320.1±42.0 °C at 760 mmHg
Density	1.4±0.1 g/cm3
Flash Point	134.7±28.5 °C
Exact Mass	191.997803
PSA	34.14000
LogP	1.67
Vapor Pressure	0.0±0.7 mmHg at 25°C
Refractive Index	1.626

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 4-Chloro-1,2-naphthalenedione?

The CAS number of 4-Chloro-1,2-naphthalenedione is 6655-90-9.

What are the molecular formula and molecular weight of 4-Chloro-1,2-naphthalenedione?

4-Chloro-1,2-naphthalenedione has molecular formula C10H5ClO2 and molecular weight 192.598 g/mol.

What are the upstream and downstream products of 4-Chloro-1,2-naphthalenedione?

For 4-Chloro-1,2-naphthalenedione, Upstream Products: 4-Chloro-1-naphthol, 2,4-Dichloro-1-naphthol.

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-Chloro-1,2-naphthalenedione (CAS 6655-90-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-896357-3 (accessed 2026-11-09).

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