Description

Solvent Orange 63 is a high-performance organic colorant belonging to the solvent dye class, identified by CAS No. 16294-75-0. This compound is valued for its excellent solubility in non-polar to moderately polar organic media, providing vibrant and stable coloration. It is primarily sought after by manufacturers in the plastics, coatings, and specialty ink industries for its ability to impart consistent, lightfast orange hues to a variety of polymer and solvent-based systems.

Application

• Primary coloration of engineering plastics such as ABS, polystyrene, and polycarbonate.
• Manufacturing of industrial and decorative coatings, including automotive finishes and coil coatings.
• Production of specialty printing inks for packaging and security applications.
• Coloring of synthetic fibers and masterbatches during polymer processing.
• Tinting of fuels, lubricants, and waxes for identification and branding purposes.
• Use in colored wood stains and transparent wood finishes.
• Formulation of colored adhesives and sealants.

Basic Information

Product Name	Solvent Orange 63
CAS No.	16294-75-0
Molecular Formula	C17H14N4O4
Molecular Weight	338.32 g/mol
Synonyms	Solvent Orange 63; C.I. Solvent Orange 63; 1-[[4-[(2,4-Dinitrophenyl)azo]phenyl]azo]-2-naphthol; Oil Orange 63; Aizen SOT Orange 1; Macrolex Orange R; Plast Orange 8630; Ceres Orange R
EINECS	240-366-6

Quality Control

Our production of Solvent Orange 63 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is tested against key parameters including color strength, hue, solubility, and thermal stability. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and physical properties is provided with every 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 ambient temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Orange to red-brown powder or granules
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Color Strength	100 ± 3% (vs. Standard)
Moisture (KF)	≤ 1.0%
Ash Content	≤ 0.5%
Solubility (in Toluene)	Complete, clear solution

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