2,5-Cyclohexadien-1-one,2,6-dibromo-4-(3,5-dibromo-4-oxo-2,5-cyclohexadien-1-ylidene)

Modify Date: 2026-07-01 15:31:52

2,5-Cyclohexadien-1-one,2,6-dibromo-4-(3,5-dibromo-4-oxo-2,5-cyclohexadien-1-ylidene) Structure
2,5-Cyclohexadien-1-one,2,6-dibromo-4-(3,5-dibromo-4-oxo-2,5-cyclohexadien-1-ylidene) structure
 Common Name 2,5-Cyclohexadien-1-one,2,6-dibromo-4-(3,5-dibromo-4-oxo-2,5-cyclohexadien-1-ylidene)
CAS Number 7338-38-7 Molecular Weight 499.77500
Density 2.61g/cm3 Boiling Point 261.5ºC at 760mmHg
Molecular Formula C12H4Br4O2 Melting Point N/A
MSDS N/A Flash Point 19.4ºC

Summary: 2,6-Dibromo-4-(3,5-dibromo-4-oxo-cyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one (Chinese name: 2,6-二溴-4-(3,5-二溴-4-氧代环己-2,5-二烯-1-基)环己-2,5-二烯-1-酮, CAS number: 7338-38-7, molecular formula: C12H4Br4O2, molecular weight: 499.77500), For research-use only, not for medical or clinical usage.

 Names

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

Name 2,6-dibromo-4-(3,5-dibromo-4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one
Synonym More Synonyms

 Chemical & Physical Properties

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

Density 2.61g/cm3
Boiling Point 261.5ºC at 760mmHg
Molecular Formula C12H4Br4O2
Molecular Weight 499.77500
Flash Point 19.4ºC
Exact Mass 495.69400
PSA 34.14000
LogP 4.56360
Index of Refraction 1.812
InChIKey MPRSKYSFMYIXCU-UHFFFAOYSA-N
SMILES O=C1C(Br)=CC(=C2C=C(Br)C(=O)C(Br)=C2)C=C1Br

 Synthetic Route

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

2-(bromomethyl)-2-(4-methoxyphenyl)cyclopentane-1,3-dione structure

2-(bromomethyl)...

CAS#:4463-79-0

~69%

2,5-Cyclohexadien-1-one,2,6-dibromo-4-(3,5-dibromo-4-oxo-2,5-cyclohexadien-1-ylidene) Structure

2,5-Cyclohexadi...

CAS#:7338-38-7

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Literature: Popov, Yu. P.; Litvinov, V. P.; Sokol'skaya, I. L. Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1980 , vol. 29, p. 1597 - 1601 Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1980 , # 10 p. 2279 - 2283
4,4'-Dihydroxybiphenyl structure

4,4'-Dihydroxyb...

CAS#:92-88-6

~%

2,5-Cyclohexadien-1-one,2,6-dibromo-4-(3,5-dibromo-4-oxo-2,5-cyclohexadien-1-ylidene) Structure

2,5-Cyclohexadi...

CAS#:7338-38-7

Learn More
Literature: Nirsha, B. M.; Pokrovskaya, I. E.; Lantratova, O. B.; Zhadanov, B. V.; Olikova, V. A. J. Gen. Chem. USSR (Engl. Transl.), 1985 , vol. 55, # 6 p. 1410 - 1413,1257 - 1260
4,4′-DIPHENOQUINONE (DQ) structure

4,4′-DIPHENOQUI...

CAS#:494-72-4

~%

2,5-Cyclohexadien-1-one,2,6-dibromo-4-(3,5-dibromo-4-oxo-2,5-cyclohexadien-1-ylidene) Structure

2,5-Cyclohexadi...

CAS#:7338-38-7

Learn More
Literature: Popov, Yu. P.; Litvinov, V. P.; Sokol'skaya, I. L. Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1980 , vol. 29, p. 1597 - 1601 Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1980 , # 10 p. 2279 - 2283
Benzoic acid,2-[bis(3,5-dibromo-4-hydroxyphenyl)methyl] structure

Benzoic acid,2-...

CAS#:28818-25-9

~%

2,5-Cyclohexadien-1-one,2,6-dibromo-4-(3,5-dibromo-4-oxo-2,5-cyclohexadien-1-ylidene) Structure

2,5-Cyclohexadi...

CAS#:7338-38-7

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Literature: Moir Chem. Zentralbl., 1913 , vol. 84, # II p. 1665
phenolphthalin structure

phenolphthalin

CAS#:81-90-3

~%

2,5-Cyclohexadien-1-one,2,6-dibromo-4-(3,5-dibromo-4-oxo-2,5-cyclohexadien-1-ylidene) Structure

2,5-Cyclohexadi...

CAS#:7338-38-7

Learn More
Literature: Baeyer Justus Liebigs Annalen der Chemie, 1880 , vol. 202, p. 56,63
Sulfuric acid structure

Sulfuric acid

CAS#:7664-93-9

3',3'',5',5''-TETRABROMOPHENOLPHTHALEIN structure

3',3'',5',5''-T...

CAS#:76-62-0

~%

2,5-Cyclohexadien-1-one,2,6-dibromo-4-(3,5-dibromo-4-oxo-2,5-cyclohexadien-1-ylidene) Structure

2,5-Cyclohexadi...

CAS#:7338-38-7

Learn More
Literature: Baeyer Chemische Berichte, 1876 , vol. 9, p. 1232 Justus Liebigs Annalen der Chemie, 1880 , vol. 202, p. 74,75 Show Details Baeyer Privatmitteilung Show Details Baeyer; Schraube Chemische Berichte, 1878 , vol. 11, p. 1301
Sulfuric acid structure

Sulfuric acid

CAS#:7664-93-9

3',3'',5',5''-TETRABROMOPHENOLPHTHALEIN structure

3',3'',5',5''-T...

CAS#:76-62-0

nitric acid structure

nitric acid

CAS#:7697-37-2

~%

2,5-Cyclohexadien-1-one,2,6-dibromo-4-(3,5-dibromo-4-oxo-2,5-cyclohexadien-1-ylidene) Structure

2,5-Cyclohexadi...

CAS#:7338-38-7

Learn More
Literature: Baeyer Chemische Berichte, 1876 , vol. 9, p. 1232 Justus Liebigs Annalen der Chemie, 1880 , vol. 202, p. 74,75 Show Details Baeyer Privatmitteilung Show Details Baeyer; Schraube Chemische Berichte, 1878 , vol. 11, p. 1301

 Synonyms

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

3,3',5,5'-tetrabromo-p-diphenoquinone
3,3',5,5'-tetrabromodiphenoquinone
3,3',5,5'-tetrabromo-4,4'-diphenoquinone
tetrabromodiphenoquinone

  | FAQ

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

Q: What is the CAS number of 2,6-dibromo-4-(3,5-dibromo-4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one?
A: CAS number of 2,6-dibromo-4-(3,5-dibromo-4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one is 7338-38-7.
Q: What is the SMILES notation of 2,6-dibromo-4-(3,5-dibromo-4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one?
A: SMILES notation of 2,6-dibromo-4-(3,5-dibromo-4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one is O=C1C(Br)=CC(=C2C=C(Br)C(=O)C(Br)=C2)C=C1Br.
Q: What are the upstream materials of 2,6-dibromo-4-(3,5-dibromo-4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one?
A: Related upstream materials(CAS) of 2,6-dibromo-4-(3,5-dibromo-4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one: 4463-79-0;92-88-6;494-72-4;28818-25-9;81-90-3;7664-93-9;76-62-0;7697-37-2.
Q: What is the molecular weight of 2,6-dibromo-4-(3,5-dibromo-4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one?
A: Molecular weight of 2,6-dibromo-4-(3,5-dibromo-4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one is 499.77500.
Q: What is the InChIKey of 2,6-dibromo-4-(3,5-dibromo-4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one?
A: InChIKey of 2,6-dibromo-4-(3,5-dibromo-4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one is MPRSKYSFMYIXCU-UHFFFAOYSA-N.
Q: What is the polar surface area (PSA) of 2,6-dibromo-4-(3,5-dibromo-4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one?
A: Polar surface area (PSA) of 2,6-dibromo-4-(3,5-dibromo-4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one is 34.14000.
Q: What is the Chinese name of 7338-38-7?
A: Chinese name of 7338-38-7 is 7338-38-7.
Q: What is the molecular formula of 2,6-dibromo-4-(3,5-dibromo-4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one?
A: Molecular formula of 2,6-dibromo-4-(3,5-dibromo-4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one is C12H4Br4O2.
Q: What is the LogP of 2,6-dibromo-4-(3,5-dibromo-4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one?
A: LogP of 2,6-dibromo-4-(3,5-dibromo-4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one is 4.56360.
Q: What is the English name of 2,6-dibromo-4-(3,5-dibromo-4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one?
A: The English name of 2,6-dibromo-4-(3,5-dibromo-4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one is 2,6-dibromo-4-(3,5-dibromo-4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one.

 factory

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

Dayang Chem (Hangzhou) Co., Ltd.
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Chemsrc provides CAS#:7338-38-7 MSDS, density, melting point, boiling point, structure, etc. Its name is 2,5-Cyclohexadien-1-one,2,6-dibromo-4-(3,5-dibromo-4-oxo-2,5-cyclohexadien-1-ylidene)>> amp version: 2,5-Cyclohexadien-1-one,2,6-dibromo-4-(3,5-dibromo-4-oxo-2,5-cyclohexadien-1-ylidene)

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