Description

C.I.Pigment Yellow 126 is a high-performance, green-shade yellow monoazo pigment. This compound matters for its excellent lightfastness, heat stability, and chemical resistance, making it a durable and reliable colorant for demanding applications. It is primarily needed by manufacturers in the plastics, coatings, and printing ink industries seeking vibrant, long-lasting yellow hues.

Application

• Coloration of plastics, including PVC, polyolefins, and engineering resins.
• Industrial and decorative coatings, such as automotive finishes and powder coatings.
• Printing inks for packaging, publications, and specialty printing.
• Masterbatch and color concentrate production.
• Coloring of synthetic fibers and spin dyeing.
• Paints and artists' colors requiring high permanence.

Basic Information

Product Name	C.I. Pigment Yellow 126
CAS No.	61815-08-5
Molecular Formula	C34H30Cl2N6O6
Molecular Weight	681.55 g/mol
Synonyms	Pigment Yellow 126; C.I. 21101; Benzimidazolone Yellow H4G; PY 126; Permanent Yellow H4G; Novoperm Yellow H4G; Hansa Brilliant Yellow 5GX; Monoazo Yellow Pigment; 2,2'-[(3,3'-Dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-oxobutanamide]
EINECS	263-242-6

Quality Control

Our C.I. Pigment Yellow 126 is manufactured under a strict quality management system. Each batch undergoes rigorous testing for key parameters including color strength, hue, particle size distribution, and chemical purity to ensure consistency and performance. Certificates of Analysis (COA) confirming compliance with agreed specifications are available upon request.

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 strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow Powder
Identification (IR)	Conforms
Color Strength	100 ± 5% (vs. Standard)
Hue	Within agreed range
Resistance to Light	7-8 (ISO 105-B02)
Heat Stability	≥ 260°C
Oil Absorption	40 - 50 g/100g
Particle Size (D50)	0.2 - 0.5 μm
Volatile Matter	≤ 2.0%

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