4,4′-DIPHENOQUINONE (DQ)

Modify Date: 2026-07-01 11:27:47

4,4′-DIPHENOQUINONE (DQ) structure	Common Name	4,4′-DIPHENOQUINONE (DQ)
	CAS Number	494-72-4	Molecular Weight	184.19100
	Density	1.297g/cm3	Boiling Point	358ºC at 760 mmHg
	Molecular Formula	C₁₂H₈O₂	Melting Point	N/A
	MSDS	N/A	Flash Point	134.3ºC

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name	4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one
Synonym	More Synonyms

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density	1.297g/cm3
Boiling Point	358ºC at 760 mmHg
Molecular Formula	C₁₂H₈O₂
Molecular Weight	184.19100
Flash Point	134.3ºC
Exact Mass	184.05200
PSA	34.14000
LogP	1.67320
Vapour Pressure	2.63E-05mmHg at 25°C
Index of Refraction	1.647
InChIKey	DDTHMESPCBONDT-UHFFFAOYSA-N
SMILES	O=C1C=CC(=C2C=CC(=O)C=C2)C=C1

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DT7320550

CHEMICAL NAME :: (Bi-2,5-cyclohexadien-1-ylidene)-4,4'-dione

CAS REGISTRY NUMBER :: 494-72-4

BEILSTEIN REFERENCE NO. :: 2043852

LAST UPDATED :: 199709

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C12-H8-O2

MOLECULAR WEIGHT :: 184.20

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

TYPE OF TEST :: Mutation test systems - not otherwise specified

TEST SYSTEM :: Human Lymphocyte

DOSE/DURATION :: 100 nmol/L

REFERENCE :: CNREA8 Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut Sts., Philadelphia, PA 19106) V.1- 1941- Volume(issue)/page/year: 45,2471,1985

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

4,4'-Dihydroxyb...

CAS#:92-88-6

~68%

4,4′-DIPHENOQUI...

CAS#:494-72-4

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Literature: Pelter, Andrew; Elgendy, Said M. A. Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1993 , # 16 p. 1891 - 1896

2,6-Xylenol

CAS#:576-26-1

4,4′-DIPHENOQUI...

CAS#:494-72-4

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Literature: Viersen F. J.; Challa, G.; Reedijk, J. Recueil des Travaux Chimiques des Pays-Bas, 1989 , vol. 108, # 7-8 p. 247 - 255

Hydroquinone

CAS#:123-31-9

4,4′-DIPHENOQUI...

CAS#:494-72-4

1,4-Benzoquinone

CAS#:106-51-4

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Literature: Mukherjee; Ganguly; Bhattacharjee Indian Journal of Chemistry - Section A Inorganic, Physical, Theoretical and Analytical Chemistry, 1996 , vol. 35, # 6 p. 471 - 474

[(H2O)Pt(NH3)2(...

CAS#:79745-48-5

Phenol

CAS#:108-95-2

4,4′-DIPHENOQUI...

CAS#:494-72-4

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Literature: Hyodo, Shuntaro; Kishi, Masatoshi; Fukushima, Hiroyuki; Iwatsuki, Satoshi; Ishihara, Koji; Matsumoto, Kazuko European Journal of Inorganic Chemistry, 2012 , # 33 p. 5571 - 5577

Phenol

CAS#:108-95-2

~10%

2,5-Cyclohexadi...

CAS#:695-99-8

4,4′-DIPHENOQUI...

CAS#:494-72-4

1,4-Benzoquinone

CAS#:106-51-4

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Literature: Ganiev; Suvorkina; Kabal'nova Russian Chemical Bulletin, 2003 , vol. 52, # 5 p. 1123 - 1128

p,p'-biphenylse...

CAS#:46311-22-2

4,4′-DIPHENOQUI...

CAS#:494-72-4

p,p'-biphenylse...

CAS#:46311-22-2

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Literature: Lantratova, O. B.; Kuz'min, V. A.; Prokof'ev, A. I.; Khudyakov, I. V.; Pokrovskaya, I. E. Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1981 , vol. 30, # 8 p. 1459 - 1465 Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1981 , vol. 30, # 8 p. 1789 - 1796

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor 4
CAS#:92-88-6 4,4'-Dihydroxyb... CAS#:576-26-1 2,6-Xylenol CAS#:123-31-9 Hydroquinone CAS#:108-95-2 Phenol
DownStream 5
CAS#:92-88-6 4,4'-Dihydroxyb... CAS#:27728-29-6 2,5-Cyclohexadi... CAS#:13049-13-3 [1,1'-Biphenyl]... CAS#:16881-71-3 4-HYDROXY-4'-ME...
CAS#:7338-38-7 2,5-Cyclohexadi...

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

4,4'-Biphenyldione

[3,3']Bicyclohexa-1,4-dienyliden-6,6'-dion

2,5-Cyclohexadien-1-one,4-(4-oxo-2,5-cyclohexadien-1-ylidene)

Diphenoquinone

Diphenochinon-(4.4')

(BI-2,5-CYCLOHEXADIEN-1-YLIDENE)-4,4'-DIONE

4,4'-biphenoquinone

4,4'-Diphenoquinone

p-diphenoquinone

[3,3']bicyclohexa-1,4-dienylidene-6,6'-dione

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What English synonyms does 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one have?

A: English synonyms of 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one: 4,4'-Biphenyldione, [3,3']Bicyclohexa-1,4-dienyliden-6,6'-dion, 2,5-Cyclohexadien-1-one,4-(4-oxo-2,5-cyclohexadien-1-ylidene), Diphenoquinone, Diphenochinon-(4.4'), (BI-2,5-CYCLOHEXADIEN-1-YLIDENE)-4,4'-DIONE, 4,4'-biphenoquinone, 4,4'-Diphenoquinone, p-diphenoquinone, [3,3']bicyclohexa-1,4-dienylidene-6,6'-dione.

Q: What is the English name of 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one?

A: The English name of 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one is 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one.

Q: What is the InChIKey of 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one?

A: InChIKey of 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one is DDTHMESPCBONDT-UHFFFAOYSA-N.

Q: What is the LogP of 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one?

A: LogP of 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one is 1.67320.

Q: What is the SMILES notation of 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one?

A: SMILES notation of 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one is O=C1C=CC(=C2C=CC(=O)C=C2)C=C1.

Q: What is the molecular weight of 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one?

A: Molecular weight of 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one is 184.19100.

Q: What is the boiling point of 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one?

A: Boiling point of 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one is 358ºC at 760 mmHg.

Q: What is the polar surface area (PSA) of 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one?

A: Polar surface area (PSA) of 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one is 34.14000.

Q: What is the molecular formula of 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one?

A: Molecular formula of 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one is C12H8O2.

Q: What are the upstream materials of 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one?

A: Related upstream materials(CAS) of 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one: 92-88-6;576-26-1;123-31-9;108-95-2.

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd

Dayang Chem (Hangzhou) Co., Ltd.

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.

Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 4,4′-DIPHENOQUINONE (DQ)
Price: Check
Purity: 97.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 4,4′-DIPHENOQUINONE (DQ)
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

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4,4′-DIPHENOQUINONE (DQ)

Names

Chemical & Physical Properties

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

Synthetic Route

Precursor & DownStream

Synonyms

4,4′-DIPHENOQUINONE (DQ) | FAQ

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The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.