Pigments & Colorants
REACH
Anthraquinone
CAS Number
84-65-1
EC Number
201-549-0
What is Anthraquinone?
Anthraquinone (CAS 84-65-1), also referred to as 9,10-quinone, is a polycyclic aromatic ketone; a core intermediate and process catalyst in dye manufacturing and specialty chemical production.
Where is Anthraquinone used?
- Dye manufacturing: building block for anthraquinone-based dyes
- Paper manufacturing: pulping catalyst that accelerates delignification
- Textile and paper: added to alkaline pulping to increase pulp yield and reduce cooking time
- Vat dyes: foundational precursor
- Reactive and acid dyes: intermediate for fabric dyeing and printing
- Printing and packaging: derivatives for high-performance pigments with lightfastness and thermal stability
- Cosmetic colorants: starting material for synthetic hair dyes and color additives approved in certain regulated markets
Commercial specifications
- Purity typically 95% to 99%+
- High-purity grades available for tighter specification control in regulated use
Other Names (Synonyms)
Az-Q|9,10-quinone|9,10-anthraquinone|anthracene-9,10-dione|9,10-Anthracenedione|Hoelite|Morkit|9,10-Dioxoanthracene
What are the physical properties of Anthraquinone?
Melting Point 286 °C
Boiling Point 377 °C @ Press: 760 Torr
Density 1.419 g/cm³
Flash Point 365 °F
Appearance Anthraquinone is a combustible, light yellow to green crystalline solid.
Color Yellow-green to khaki to tan
Form Powder
Water Solubility <0.1 g/100 mL at 23 ºC
Vapor Pressure 1 mm Hg ( 190 °C)
Refractive Index 1.5681 (estimate)
Log P 3.39-3.4 at 30℃
How is Anthraquinone classified and handled safely? Learn More
Danger
GHS08· Health Hazard GHS07· Irritant GHS09· Environmental Hazard
Hazard Statements
H317 May cause an allergic skin reaction
H320 Causes eye irritation
H350 May cause cancer
H351 Suspected of causing cancer
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P272 Contaminated work clothing should not be allowed out of the workplace.
Which trade and regulatory codes apply to Anthraquinone?
HS Code 29146100
Storage Class 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects
WGK (Germany) 1