Description

C.I. Solvent Yellow 55 is a high-purity, lightfast organic pigment and dye belonging to the solvent dye class, identified by CAS NO 71872-87-2. This compound is valued for its excellent solubility in non-polar and low-polarity organic solvents, providing vibrant and stable yellow coloration. It is primarily sought after by manufacturers in the plastics, inks, and coatings industries who require consistent, high-performance colorants for their formulations.

Application

• Plastics Coloring: Used for mass coloration of various polymers, including polystyrene, ABS, and polycarbonate, offering good heat stability and dispersion.
• Ink Formulations: A key component in solvent-based printing inks for flexographic and gravure printing, providing strong tinctorial strength.
• Industrial Coatings: Imparts durable yellow shades to lacquers, wood stains, and automotive refinish paints.
• Wax and Grease Markers: Employed as a colorant in marking crayons, chalks, and lubricants for identification purposes.
• Specialty Fluids: Used for coloring fuels, oils, and other hydrocarbon-based fluids for leak detection or product differentiation.
• Consumer Products: Finds application in coloring certain household and personal care items where solvent compatibility is required.

Basic Information

Product Name	C.I. Solvent Yellow 55
CAS No.	71872-87-2
Molecular Formula	C18H14N2O3
Molecular Weight	306.32 g/mol
Synonyms	Solvent Yellow 55; C.I. 12700; 1,3-Benzenedicarboxamide, N1,N3-bis(2-methylphenyl)-; N,N'-Di-o-tolylisophthalamide; Kayaset Yellow E-G; Oil Yellow 3G; Plast Yellow 8070; Isophthalamide derivative yellow dye
EINECS	Contact for details

Quality Control

Our C.I. Solvent Yellow 55 is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for color strength, hue, solubility, and purity. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials.

Specification

Item	Specification
Appearance	Yellow powder or granules
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Hue	Within agreed tolerance
Solubility (in Toluene)	Clear, complete solution
Moisture Content	≤ 0.5%
Ash Content	≤ 0.5%
Particle Size (Pass 80 mesh)	≥ 95%

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