Description

Quinoline Yellow CAS NO 8004-92-0 is a synthetic organic colorant belonging to the quinophthalone class, valued for its bright greenish-yellow hue. This dye is prized for its excellent light and heat stability, making it a reliable choice for demanding applications where color consistency is critical. It serves as an essential pigment and dye for manufacturers in the plastics, ink, and coating industries, as well as a colorant in specialized applications.

Application

• Primary colorant for the mass coloration of plastics, including polystyrene, ABS, and polycarbonate.
• Manufacturing of high-quality printing inks, particularly for packaging and publications.
• Industrial and decorative coatings, including automotive finishes and powder coatings.
• Coloration of synthetic fibers and yarns during the spinning process.
• Specialized applications in the coloration of candles and wax-based products.
• As a staining agent or color marker in select non-food industrial and laboratory contexts.

Basic Information

Product Name	Quinoline Yellow
CAS No.	8004-92-0
Molecular Formula	C18H9NNa2O8S2 (Disodium salt of Quinoline Yellow WS)
Molecular Weight	477.38 g/mol
Synonyms	Quinoline Yellow WS; Food Yellow 13; C.I. 47005; Acid Yellow 3; D&C Yellow No. 10; 2-(2-Quinolyl)-1,3-indandione disulfonic acid disodium salt; Quinophthalone Yellow; Solvent Yellow 33 (for solvent-soluble forms)
EINECS	232-318-2

Quality Control

Our production of Quinoline Yellow adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as color strength, hue, and purity are rigorously tested against established standards. A comprehensive Certificate of Analysis (COA) detailing specific test results is provided with every shipment to guarantee compliance with your technical requirements.

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 incompatible materials and sources of ignition.

Specification

Item	Specification
Appearance	Yellow to greenish-yellow powder
Identification (IR)	Conforms to standard
Assay (Color Content)	≥ 85%
Moisture Content	≤ 5.0%
Ash Content	≤ 30.0%
Solubility (in Water)	Clear solution
Light Fastness	≥ 6 (ISO 105-B02)
Heat Stability	≥ 280°C

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