Organic Pigments

Pigment Red 8

Also Known As:C.I. 1233512335Naphthol AS

Pigment Red 8 affords clean bluish shade of red, exhibits high color strength and produces brilliant prints. Used for which required no solvent resistance.

Pigment Red 8 - 1

Key Features

Good dispersion and processing performance
Bright shade and good color strength
Heat resistance up to 250°C (system dependent)
Light fastness: 8 (scale 1–10)
Suitable for general-purpose applications

Technical Specifications

C.I. NO.12335
CAS NO.6410-30-6
EU NO229-100-4
Molecular FormulaC24H17CIN4O4
Chemical GroupNaphthol AS
Moisture≤2.0
Water Soluble Matter≤1.5
Electric Conductivity≤500
Fineness (80 mesh)≤5.0
pH Value6.5-7.5

Physical Data & Fastness Properties

Acid Resistance7
Alkali Resistance8
Alcohol Resistance9
Ester Resistance8
Benzene Resistance8
Soap Resistance6
Heat Resistance250°C
Light Fastness8

Application Fields

This product is widely used in the following application fields, providing excellent coloring performance and durability:

  • General-purpose inks
  • Paints and coatings
  • Plastics coloring
  • Masterbatch production

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Usage Instructions

Recommended dosage: 0.3–3.0% depending on color strength and application. For plastics/masterbatch, pre-disperse with suitable carrier resin and dispersant; for inks/coatings, mill to target fineness. Processing temperature should be controlled below 250°C (system dependent). Ensure good ventilation and use appropriate PPE. Store sealed in a cool, dry place.

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