Acridone

CAS Number
578-95-0
EC Number
209-434-7

What is Acridone?

Acridone (CAS 578-95-0) is a heterocyclic lactam compound used industrially as a UV stabilizer, antioxidant, and as a core building block in the synthesis of high-performance pigments and dyes.

Where is Acridone used?

  • Plastics and polymer formulations: UV absorbers and antioxidants that protect finished materials from photodegradation during outdoor or high-exposure use
  • Printing and packaging: acridone-based pigments for strong color strength and lightfastness in inks applied to flexible packaging and commercial print substrates
  • Textile and paper dyeing: acridone intermediates for fluorescent and high-chroma colorants with good wash and light fastness
  • Personal care: acridone derivatives contribute UV-filtering functionality where photostability is a requirement
  • Its light-absorbing characteristics make it a valued intermediate in colorant chemistry and polymer stabilization systems.

Commercial specifications

  • Purity typically specified at 98% or higher by HPLC for industrial applications
  • Packaging ranges from kilogram-scale laboratory quantities to bulk industrial volumes depending on supplier

Other Names (Synonyms)

9(10H)-Acridone|acridin-9(10H)-one|9(10H)-ACRIDINONE|10H-acridin-9-one|6BK306GUQA|9-Acridanone|Acridine, 9,10-dihydro-9-oxo-

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What are the physical properties of Acridone?

Melting Point 354 °C
Boiling Point 331.88°C (rough estimate)
Density 1.1266 (rough estimate)
Appearance YELLOW TO YELLOWISH-GREEN CRYSTALLINE POWDER
Color Yellow
Form Crystalline Powder
Water Solubility Insoluble in benzene, chloroform, ether, water and ethanol.
Refractive Index 1.6060 (estimate)

How is Acridone classified and handled safely? Learn More

Warning
GHS07· Irritant

Hazard Statements

H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation

Precautionary Statements

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.

Which trade and regulatory codes apply to Acridone?

HS Code 29339900
Storage Class 11 - Combustible Solids
WGK (Germany) 3
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