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Pigments & Colorants

Pigment yellow 65

CAS: 6528-34-3

Overview

Pigment Yellow 65 (CAS 6528-34-3 ) is a monoazo yellow pigment used to deliver bright, warm yellow hues across a range of industrial colorant systems. Known in trade as PY65, it belongs to the acetoacetarylide class.

It is valued for its clean masstone and reliable color strength in demanding manufacturing processes. In plastics and polymer compounding, PY65 provides consistent yellow coloration in rigid and flexible substrates.

Processing temperatures require reasonable heat stability for these applications. Coatings formulators incorporate it into industrial paints and decorative finishes where a reddish-yellow tone and good hiding power are priorities.

Printing ink manufacturers use it in packaging inks, particularly solvent-based and offset systems, where color reproducibility across print runs is critical. This ensures high quality and consistency for large scale production.

Textile and paper dyeing operations also draw on PY65 for surface coloration and pigment-printed fabric applications. It offers versatility across multiple sectors requiring durable and vibrant yellow pigments for various materials.

Pigment Yellow 65 is supplied as a dry powder, typically in press cake or flushed paste form depending on the downstream application. Standard commercial grades are available for plastics, coatings, and ink use.

Particle size and surface treatment vary by grade to optimize dispersion performance. Packaging is commonly offered in fiber drums or multi-wall bags suited to industrial volumes and safe transport for chemical logistics.

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Physical Properties

Melting Point236 - 240°C
Boiling Point570.1±50.0 °C(Predicted)
Density1.33
ColorYellow to Dark Orange
FormSolid
Water Solubility1.9μg/L at 25℃
Vapor Pressure0Pa at 25℃
Log P4.83 at 22.6℃

Safety & Handling

GHS09

Other Names

2-[(4-Methoxy-2-nitrophenyl)azo]-N-(2-methoxyphenyl)-3-oxo-butyramide | Butanamide2-((4-methoxy-2-nitrophenyl)azo)-N-(2-methoxyphenyl)-3-oxo- | 2-((4-Methoxy-2-nitrophenyl)azo)-o-acetoacetanisidide | Butanamide2-(2-(4-methoxy-2-nitrophenyl)diazenyl)-N-(2-methoxyphenyl)-3-oxo- | 2-[2-(4-Methoxy-2-nitrophenyl)diazenyl]-N-(2-methoxyphenyl)-3-oxobutanamide | C.I. Pigment Yellow 65 | C.I. 11740

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Chemical Properties

CAS Number
6528-34-3
EC Number
229-419-9
Mol. Weight
386.4

Industries

Documentation