| Identification | More | [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 Properties | Back 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 Data | Back 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) |
| Hazard Information | Back 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.] |
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