[Appearance]: White flake crystal. 
[Molecular formula]: C₈H₆O₂. 
[Molecular weight]: 134.13. 
[Structural formula]:

[CAS] : 87-41-2   

 

[Quality indicators]:

Index name	Index value
Description	White flake crystalline
Assay（GC） %                   min	99.0
Melting point ℃	71 – 74 ℃
Water content  %                   max	0.2
Ash（As sulphated）%             max	0.1

 

[Usage]: used in the production of fungicides azoxystrobin, tetrachlorophenolphthalide, dye intermediates 1-dichloroanthraquinone, 1-chloroanthraquinone, reducing brown BR, anticoagulant phenyl indendione, antianxiety drug doxepin, and can also be used as organic synthesis. 
[Packing]: 25kg / cardboard barrel or 25kg / composite bag, packed in double-layer plastic bags. 
[Storage]: store in a dry and cool place.