2-chloro-2,4,6-cycloheptatrien-1-one

Also known as: 2-Chlorotropone, 2-Chlorocycloheptatrienone, 2-Chlorocyclohepta-2,4,6-trien-1-one, 2-Chlorocyclohepta-2,4,6-trienone, SKL286, NSC 328816

2-chloro-2,4,6-cycloheptatrien-1-one (CAS 3839-48-3) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C7H5ClO and a molecular weight of 140.567 g/mol. Key properties include a melting point of 64-67ºC, a boiling point of 250.8±29.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 102.7±15.4 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H314 — Causes severe skin burns and eye damage and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3839-48-3
Jingsj CID: J-1069677-2
Molecular Formula: C₇H₅ClO
Molecular Weight: 140.567 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	64-67ºC
Boiling Point	250.8±29.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	102.7±15.4 °C
Exact Mass	140.002899
PSA	17.07000
LogP	0.85
Vapor Pressure	0.0±0.5 mmHg at 25°C
Refractive Index	1.559

GHS Safety & Compliance

Corrosion / Irritant / Health HazardSignal word: Danger

H302 — Harmful if swallowed
H314 — Causes severe skin burns and eye damage
H317 — May cause an allergic skin reaction
H334 — May cause allergy or asthma symptoms if inhaled

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-chloro-2,4,6-cycloheptatrien-1-one?

The CAS number of 2-chloro-2,4,6-cycloheptatrien-1-one is 3839-48-3.

What are the molecular formula and molecular weight of 2-chloro-2,4,6-cycloheptatrien-1-one?

2-chloro-2,4,6-cycloheptatrien-1-one has molecular formula C7H5ClO and molecular weight 140.567 g/mol.

Is 2-chloro-2,4,6-cycloheptatrien-1-one hazardous?

2-chloro-2,4,6-cycloheptatrien-1-one has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H314 — Causes severe skin burns and eye damage; H317 — May cause an allergic skin reaction.

What are the upstream and downstream products of 2-chloro-2,4,6-cycloheptatrien-1-one?

For 2-chloro-2,4,6-cycloheptatrien-1-one, Upstream Products: Tropolone, Tropolone tosylate, Tropone; Downstream Products: Dimethyl 3,4-furandicarboxylate, Tropone.

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-chloro-2,4,6-cycloheptatrien-1-one (CAS 3839-48-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1069677-2 (accessed 2026-11-09).

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