ChemicalBook--->CAS DataBase List--->82-05-3

82-05-3

82-05-3 Structure

82-05-3 Structure
IdentificationMore
[Name]

Benzanthrone
[CAS]

82-05-3
[Synonyms]

1,9-BENZ-10-ANTHRONE
7 H-BENZ[DE]ANTHRACEN-7-ONE
7H-BENZ[DE]ANTHRACENE-7-ONE
7-Oxobenz[de]anthracene
Benzanthone
Benzanthrenone
BENZANTHRONE
benz[de]anthracen-7-one
LABOTEST-BB LT00454110
naphthanthrone
1,9-benzanthrone
7H-benz[a]anthracen-7-one
7H-Benzo(de)anthracen-7-one
Benzoanthrone
Dye, benzanthrone
dye,benzanthrone
Mesobenzanthrone
Ms-Benzanthrone
Benzanthrone,98%
BENZANTHRONE, TECH.
[EINECS(EC#)]

201-393-3
[Molecular Formula]

C18H12O
[MDL Number]

MFCD00003585
[Molecular Weight]

244.29
[MOL File]

82-05-3.mol
Chemical PropertiesBack Directory
[Definition]

A four-ring system.
[Appearance]

light yellow powder
[Melting point ]

168-170 °C(lit.)
[Boiling point ]

332.25°C (rough estimate)
[density ]

1.0929 (rough estimate)
[refractive index ]

1.5000 (estimate)
[storage temp. ]

Sealed in dry,Room Temperature
[solubility ]

Chloroform (Slightly), Methanol (Slightly, Sonicated)
[form ]

Solid
[color ]

Light Yellow to Yellow
[Stability:]

Stable. Incompatible with strong oxidizing agents.
[Merck ]

14,1063
[BRN ]

1455646
[CAS DataBase Reference]

82-05-3(CAS DataBase Reference)
[NIST Chemistry Reference]

Benzanthone(82-05-3)
[EPA Substance Registry System]

82-05-3(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

Xi
[Risk Statements ]

R36/37/38:Irritating to eyes, respiratory system and skin .
[Safety Statements ]

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S37/39:Wear suitable gloves and eye/face protection .
[WGK Germany ]

3
[RTECS ]

CX5075000
[TSCA ]

Yes
[HS Code ]

29145090
[Hazardous Substances Data]

82-05-3(Hazardous Substances Data)
[Toxicity]

LD50 in albino rabbits: >3 g/kg dermally; LD50 in rats, mice (g/kg): 1.5, 0.29 i.p. (Singh)
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Sulfuric acid-->Benzene-->Iron-->ZINC-->Phthalic anhydride-->Copper(II) sulfate-->Acrolein-->Anthraquinone-->Copper(II) sulfate pentahydrate-->Anthrone-->[3,3'-bi-7H-benz[de]anthracene]-7,7'-dione-->Benzonitrile, 2-(1-naphthalenyl)--->7H-Benz[de]anthracene-->1-NAPHTHYL PHENYL KETONE-->2-NAPHTHYL PHENYL KETONE
[Preparation Products]

Vat Black 8-->DIBENZANTHRONE-->Vat Green 3-->Vat Violet 1-->Vat Black 25-->Vat Green 1-->3-Bromobenzanthrone-->3,9-Dibromobenzanthrone-->3-NITROBENZANTHRONE-->DIBENZANTHRONE-->Vat Violet 10
Hazard InformationBack Directory
[General Description]

Yellow needles.
[Reactivity Profile]

BENZANTHRONE is incompatible with nitrobenzene and potassium hydroxide. BENZANTHRONE is also incompatible with strong oxidizing agents.
[Fire Hazard]

Flash point data for this chemical are not available; however, BENZANTHRONE is probably combustible.
[Chemical Properties]

light yellow powder
[Uses]

Benzanthrone is reducing agent such as iron. Benzanthrone is an important intermediate for manufacturing vat dyes.
[Uses]

hepatotoxic, P450 suppressant
[Uses]

Manufacture of dyes.
[Synthesis]

Benzanthrone is prepared commercially by reacting anthraquinone with glycerol, sulfuric acid, and a reducing agent, usually iron. This involves reduction of anthraquinone to anthrone (122), which condenses immediately with the acrolein formed by dehydration of glycerol, and is finally oxidized by the sulfuric acid , , . An improved process is described in , . More recently, the use of phosphorus or a phosphorus compound, e.g., sodium hypophosphite, has been proposed as the reducing agent . Electrochemical procedures have been also suggested , . It is possible to start with anthrone prepared in a separate step, e.g., by hydrogenation . Benzanthrone is best purified by sublimation.
[Purification Methods]

Crystallise benzanthrone from EtOH or xylene. [Beilstein 7 IV 1819.]
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

benzanthrone(82-05-3).msds
Spectrum DetailBack Directory
[Spectrum Detail]

Benzanthrone(82-05-3)MS
Benzanthrone(82-05-3)1HNMR
Benzanthrone(82-05-3)13CNMR
Benzanthrone(82-05-3)IR1
Benzanthrone(82-05-3)IR2
Well-known Reagent Company Product InformationBack Directory
[Alfa Aesar]

7H-Benz[de]anthracen-7-one, 99%(82-05-3)
[Sigma Aldrich]

82-05-3(sigmaaldrich)
[TCI AMERICA]

Benzanthrone,>98.0%(GC)(82-05-3)
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