Description

C.I. Solvent Yellow 88 is a high-purity, oil-soluble monoazo dye widely used as a colorant for non-polar substrates. Its excellent solubility in organic solvents and oils, combined with good light and heat stability, makes it a critical component for achieving consistent, vibrant yellow hues in industrial applications. This product is essential for manufacturers in the plastics, printing inks, and specialty coatings sectors seeking reliable and efficient coloration.

Application

• Plastics Coloring: Primary application for coloring hydrocarbon-based polymers like polystyrene, polycarbonate, and ABS, providing excellent dispersion and color strength.
• Printing Inks: Used in solvent-based flexographic and gravure inks for packaging and publications, offering bright shade and print stability.
• Industrial Coatings: An effective colorant for lacquers, wood stains, and metal decorative coatings where solubility in aliphatic and aromatic solvents is required.
• Waxes & Polishes: Imparts color to automotive, floor, and shoe polishes, as well as modeling and candle waxes.
• Oil & Fuel Marking: Suitable for coloring lubricating oils, greases, and non-polar solvents for identification purposes.
• Specialty Resins: Used to color transparent cast resins and adhesives where clarity and color fastness are important.

Basic Information

Product Name	C.I. Solvent Yellow 88
CAS No.	61931-55-3
Molecular Formula	C18H18N4O2
Molecular Weight	322.36 g/mol
Synonyms	Solvent Yellow 88; Oil Yellow 268; C.I. 12740; 1-[(2-Methoxyphenyl)azo]-2-naphthalenol; 1-[(2-Methoxyphenyl)azo]-2-naphthol; Ceres Yellow GN; Aizen SOT Yellow-1; Sudan Yellow 146
EINECS	263-357-5

Quality Control

Our production of C.I. Solvent Yellow 88 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Every lot is tested against key parameters including color strength, hue, solubility, and impurity profile. Certificates of Analysis (COA) documenting these results are provided with each shipment to support your quality assurance processes.

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.

Specification

Item	Specification
Appearance	Yellow to orange powder or granules
Identification (IR)	Conforms to standard
Color Strength	100% ± 3% (vs. Standard)
Assay (HPLC)	≥ 98.0%
Solubility (in Toluene)	Complete, clear solution
Moisture Content	≤ 0.5%
Ash Content	≤ 0.5%
Light Fastness	≥ 5 (Blue Scale)

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