1,8-DICHLOROANTHRAQUINONE Chemical Properties

Melting point:

201.5-203 °C (lit.)

Boiling point:

387.84°C (rough estimate)

Density 

1.3240 (rough estimate)

vapor pressure 

0-0Pa at 25℃

refractive index 

1.4730 (estimate)

storage temp. 

Sealed in dry,Room Temperature

form 

Solid:particulate/powder

color 

White to Green to Brown

Water Solubility 

Slightly soluble in water.

LogP

4.63

CAS DataBase Reference

82-43-9(CAS DataBase Reference)

EPA Substance Registry System

1,8-Dichloroanthraquinone (82-43-9)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36/37/39

WGK Germany 

3

RTECS 

CB6496000

Hazard Note 

Irritant

TSCA 

Yes

HS Code 

2914790090

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

1,8-DICHLOROANTHRAQUINONE Usage And Synthesis

Uses

1,8-Dichloroanthraquinone is a reagent in the preparation of anthraquinones, which has antitumor activities. It is used as primary and secondary intermediate.

Safety Profile

An eye irritant. When heated to decomposition it emits toxic fumes of Cl-.

Synthesis

1,8-Dichloroanthraquinone is prepared by the reaction of 1-chloroanthracene-9,10-dione and 2-chloroanthracene-9,10-dione. The steps are as follows:
80 L of the mother liquors obtained according to Example 1a and 40 L of the mother liquors obtained according to Example 1b are combined in a 250 L enamel kettle and heated to 100℃. 12 L of a 10% strength aqueous sodium chlorate solution are fed in at a uniform rate at this temperature in the course of 4 hours, while stirring at 30 - 40 revolutions per minute with an anchor stitter. The mixture is stirred for a further 2 hours at 100℃. and filtered at 80℃. through a filter press, the material on the filter is washed with hot water until the filtrate gives a neutral reaction and the filter cake is dried. 1,8-dichloroanthraquinone are obtained.

1,8-DICHLOROANTHRAQUINONE(82-43-9)Related Product Information

• 2-Chlorobenzaldehyde
• Anthraquinone
• 2,2'-DICHLOROBENZOPHENONE
• 3-Chlorotoluene
• 2-CHLORO-6-METHYLBENZALDEHYDE
• 2-ETHYLBENZALDEHYDE
• 1-Chloro-3-ethylbenzene
• 3-Chlorobenzaldehyde
• 1,2-DIETHYLBENZENE
• 3-CHLORO-O-XYLENE
• Anthrone
• o-Phthalaldehyde
• Esculetin
• 3-Chlorobenzophenone
• 1-Chloro anthraquinone
• 2-ACETYLBENZALDEHYDE 95
• 2-Methylbenzophenone
• 1,8-DICHLOROANTHRAQUINONE