Atovaquone

Also known as: trans-2-[4-(4-Chlorophenyl)cyclohexyl]-3-hydroxy-1,4-naphthalenedione, 2-(trans-4-(4-Chlorophenyl)cyclohexyl)-3-hydroxy-1,4-naphthalenedione, trans-2-[4-(4-Chlorophenyl)cyclohexyl]-3-hydroxy-1,4-naphthoquinone, 3-[4-(4-Chlorophenyl)cyclohexyl]-4-hydroxy-1,2-naphthalenedione, MFCD00889188

Atovaquone (CAS 95233-18-4) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C22H19ClO3 and a molecular weight of 366.837 g/mol. Key properties include a melting point of 216-2190C, a boiling point of 542.2±50.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 281.7±30.1 °C. GHS hazard statements: H413. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 95233-18-4
Jingsj CID: J-15823-6
Molecular Formula: C₂₂H₁₉ClO₃
Molecular Weight: 366.837 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	216-2190C
Boiling Point	542.2±50.0 °C at 760 mmHg
Density	1.4±0.1 g/cm3
Flash Point	281.7±30.1 °C
Exact Mass	366.102264
PSA	54.37000
LogP	5.86
Vapor Pressure	0.0±1.5 mmHg at 25°C
Refractive Index	1.653
Storage Conditions	-20°C Freezer

GHS Safety & Compliance

H413

Activity & Biological Data

Additional Information	[1]. Looareesuwan, S., et al., Clinical studies of atovaquone, alone or in combination with other antimalarial drugs, for treatment of acute uncomplicated malaria in Thailand. Am J Trop Med Hyg, 1996. 54(1): p. 62-6. [2]. Kessl, J.J., et al., Molecular basis for atovaquone binding to the cytochrome bc1 complex. J Biol Chem, 2003. 278(33): p. 31312-8. [3]. Baggish, A.L. and D.R. Hill, Antiparasitic agent atovaquone. Antimicrobial agents and chemotherapy, 2002. 46(5): p. 1163-1173.

Additional Information

[1]. Looareesuwan, S., et al., Clinical studies of atovaquone, alone or in combination with other antimalarial drugs, for treatment of acute uncomplicated malaria in Thailand. Am J Trop Med Hyg, 1996. 54(1): p. 62-6. [2]. Kessl, J.J., et al., Molecular basis for atovaquone binding to the cytochrome bc1 complex. J Biol Chem, 2003. 278(33): p. 31312-8. [3]. Baggish, A.L. and D.R. Hill, Antiparasitic agent atovaquone. Antimicrobial agents and chemotherapy, 2002. 46(5): p. 1163-1173.

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 Atovaquone?

The CAS number of Atovaquone is 95233-18-4.

What are the molecular formula and molecular weight of Atovaquone?

Atovaquone has molecular formula C22H19ClO3 and molecular weight 366.837 g/mol.

Is Atovaquone hazardous?

Atovaquone has GHS hazard statements H413.

What are the upstream and downstream products of Atovaquone?

For Atovaquone, Upstream Products: 2-Chloro-1,4-naphthoquinone, 4-(4-Chlorophenyl)cyclohexanecarboxylic acid.

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. "Atovaquone (CAS 95233-18-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-15823-6 (accessed 2026-11-09).

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