Description

Fast Yellow G is a synthetic organic pigment belonging to the diarylide yellow class, known for its bright, greenish-yellow hue and strong tinting strength. This high-performance pigment offers excellent lightfastness and heat stability, making it a reliable choice for demanding coloration applications. It is primarily utilized in the plastics, inks, and coatings industries where consistent color quality and durability are critical.

Application

• Plastics Coloring: For mass coloration of polyolefins (PP, PE), PVC, and engineering plastics, providing excellent dispersion and heat stability during processing.
• Printing Inks: Used in solvent-based, water-based, and offset printing inks to achieve vibrant, opaque yellow shades with good printability.
• Industrial Coatings: Imparts durable and weather-resistant yellow colors in automotive refinishes, industrial paints, and powder coatings.
• Masterbatch Production: A key component in the manufacture of color concentrates and compounds for the plastics industry.
• Synthetic Fibers: For spin dyeing of fibers where high color fastness to light and washing is required.
• Rubber Products: Used in the coloration of technical rubber goods and elastomers.

Basic Information

Product Name	Fast Yellow G
CAS No.	2512-29-0
Molecular Formula	C34H28Cl2N6O4
Molecular Weight	647.53 g/mol
Synonyms	Pigment Yellow 12; C.I. 21090; Diarylide Yellow AAA; Permanent Yellow G; Vulcan Fast Yellow G; Benzidine Yellow G; 3,3'-Dichlorobenzidine Diarylide Pigment; Butanamide, 2,2'-[(3,3'-Dichloro[1,1'-biphenyl]-4,4'-diyl)bis(2,1-diazenediyl)]bis[N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-oxo-]
EINECS	219-730-8

Quality Control

Our Fast Yellow G is manufactured under a strict quality management system to ensure batch-to-batch consistency. Each lot is tested against key parameters including color strength, hue, particle size distribution, and rheological properties. A Certificate of Analysis (COA) detailing purity, physical characteristics, and performance data is provided with every shipment to guarantee it meets your technical specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. Under these conditions, the product has a long shelf life.

Specification

Item	Specification
Appearance	Yellow Powder
Color Strength	100 ± 5% (vs. Standard)
Hue	Standard
Purity (HPLC)	> 95%
Volatile Matter	< 2.0%
Ash Content	< 1.0%
pH Value (10% Slurry)	6.0 - 8.0
Particle Size (D50)	< 1.0 µm
Oil Absorption	40 - 60 g/100g
Heat Stability	> 200°C
Lightfastness	7-8 (ISO 105-B02)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.