Molecular Formula: C₁₄H₈O₄

  Molecular Weight: 240.215

  Properties: Quinizarin is a bright-orange-red-colored (content99.0%) or a brown-red colored (content96.0%) powder, easily soluble in sulfuric acid, flammable.

  Uses: This product is an important dye intermediate, mainly used in the production of dispersed dyes, reducing dyes and acid dyes, etc.

  Packing: 25kgs or 40kgs packed in plastic woven bag or carton drum or iron drum lined with plastic bag.

  Caution: This product possesses slight poison. Be careful not to get in touch with skin. Stored in dry and ventilated place, prevent from heat and moisture.

  The Standard of Product Quality:

Class Index Terms	Refined product		Elementary product
	High class	First class	First class	Qualified
Appearance	Bright-orange Colored powder		Red-brown Colored powder
Assay (%)	99.0	99.0	96.0	96.0
Melting Point ()	194	193	191	190
Moisture (%)	0.2	0.2	1.0	1.0
Ashes (%)	0.02	0.02	0.5	0.5
Toluene insoluble matter (%)	0.2	0.2	2.0	4.0
Fe (ppm)	50	100	100	-