Description

Golden Yellow CAS NO 49625-21-0 is a high-purity synthetic organic pigment belonging to the diarylide yellow chemical class. This pigment is valued for its excellent color strength, good lightfastness, and strong solvent resistance, making it a critical component for achieving consistent and durable coloration. It is primarily utilized by manufacturers in the plastics, inks, and coatings industries who require stable and vibrant yellow hues for their products.

Application

• Plastics Coloring: Masterbatch and compound production for polyethylene (PE), polypropylene (PP), polystyrene (PS), and ABS.
• Printing Inks: Formulation of high-performance solvent-based and oil-based inks for packaging and commercial printing.
• Industrial Coatings: Providing durable color for automotive refinish paints, industrial maintenance coatings, and decorative paints.
• Synthetic Fibers: Mass coloration of fibers such as polypropylene and polyester during the spinning process.
• Rubber Products: Coloring of technical rubber goods and elastomers.

Basic Information

Product Name	Golden Yellow CAS NO 49625-21-0
CAS No.	49625-21-0
Molecular Formula	C34H28Cl2N6O4
Molecular Weight	647.53 g/mol
Synonyms	Pigment Yellow 83; C.I. 21108; Diarylide Yellow HR; Permanent Yellow HR; Vulcan Fast Yellow 5R; Benzidine Yellow HR; 3,3'-[(3,3'-Dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-methyl-2-butanone]
EINECS	256-417-9

Quality Control

Our production of Golden Yellow CAS NO 49625-21-0 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. The pigment is manufactured and tested to meet industry-standard specifications for color value, strength, and purity. A comprehensive Certificate of Analysis (COA) detailing key parameters such as color strength, hue, and impurity profile is provided with every shipment to guarantee compliance with your formulation requirements.

Storage

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

Specification

Item	Specification
Appearance	Yellow Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 5% (vs. Standard)
Hue	Within agreed tolerance
Volatile Matter (at 105°C)	≤ 2.0%
Residue on Sieve (63 µm)	≤ 0.1%
pH Value (Aqueous Slurry)	6.0 - 8.0

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